Natural Gas and Fuel Production

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Questions and Answers

What is produced when charcoal is ignited?

  • Carbon dioxide and energy (correct)
  • Sulfur dioxide and water
  • Ozone and ash
  • Methane and oxygen

Which process is used to refine petroleum products?

  • Catalytic cracking and fractional distillation (correct)
  • Thermal decomposition and polymerization
  • Pure distillation and thermal oxidation
  • Hydrocracking and syngas production

What characterizes lignite coal?

  • It is hard and non-porous
  • It is formed from ancient petrified wood
  • It contains 60% moisture (correct)
  • It has the highest carbon content

What type of products can be derived from liquefied fuels according to the passage?

<p>Transportation fuels and plastics (D)</p> Signup and view all the answers

What is the main characteristic of the vapor from liquid fuels?

<p>It is flammable without dust (C)</p> Signup and view all the answers

Which of the following is a common use for refined petroleum products?

<p>Asphalt and cosmetics (C)</p> Signup and view all the answers

What is one primary concern regarding the burning of peat?

<p>It has a high sulfur content (A)</p> Signup and view all the answers

What is the primary component of natural gas?

<p>Methane (C)</p> Signup and view all the answers

Where does the formation of natural gas primarily occur?

<p>Deep in the Earth's crust (B)</p> Signup and view all the answers

Coke is primarily produced by which of the following methods?

<p>Heating coal strongly in the absence of oxygen (C)</p> Signup and view all the answers

Which process is involved in the production of biogas?

<p>Anaerobic decomposition of organic waste (A)</p> Signup and view all the answers

How does natural gas compare to liquid fuels in terms of energy content?

<p>Natural gas has a lower energy content than liquid fuels. (B)</p> Signup and view all the answers

What distinguishes producer gas from other gaseous fuels?

<p>It consists mainly of carbon monoxide and hydrogen. (D)</p> Signup and view all the answers

What role does methane play in gaseous fuels?

<p>It is the primary component of natural gas. (D)</p> Signup and view all the answers

What is one of the primary uses of natural gas?

<p>Cooking and heating (A)</p> Signup and view all the answers

What is a characteristic of clay soil?

<p>Small spaces between particles (A)</p> Signup and view all the answers

Which of the following best describes biogas?

<p>It is a type of biofuel produced from the decomposition of organic waste. (D)</p> Signup and view all the answers

Which type of soil is known to be prone to erosion by glaciers?

<p>Silt Soil (D)</p> Signup and view all the answers

What effect do ozone-depleting substances have on the ozone layer?

<p>They allow more UV radiation to pass through (C)</p> Signup and view all the answers

What is the primary characteristic of peat soil?

<p>Contains ≥ 20% organic carbon (A)</p> Signup and view all the answers

Which of the following is NOT a property of light soils?

<p>Holds moisture well (B)</p> Signup and view all the answers

What percentage of clay indicates the presence of clay soil?

<p>25% clay (A)</p> Signup and view all the answers

In which soil layer do seeds germinate and plant roots grow most effectively?

<p>A Horizon (B)</p> Signup and view all the answers

What characteristic of chalk soil affects its ability to support plant growth?

<p>It is highly alkaline due to calcium carbonate. (C)</p> Signup and view all the answers

What is the primary feature of the A horizon in soil formation?

<p>It contains high organic matter and retains moisture. (A)</p> Signup and view all the answers

What occurs to clay soil when water is added?

<p>It expands and becomes moldable (D)</p> Signup and view all the answers

Which statement accurately describes the E horizon?

<p>It is characterized by significant leaching and a pale color. (B)</p> Signup and view all the answers

What distinguishes the B horizon from other soil horizons?

<p>It is the zone of accumulation of minerals and organics. (C)</p> Signup and view all the answers

Which of the following layers is known as the illuviated horizon?

<p>B Horizon (A)</p> Signup and view all the answers

How does loam soil generally benefit plant growth?

<p>It is a combination of sand, silt, and clay that avoids negative aspects of each. (A)</p> Signup and view all the answers

What layer of soil is predominantly made up of slightly broken-up bedrock?

<p>C Horizon (C)</p> Signup and view all the answers

Which feature is typically associated with soils high in organic matter?

<p>Dark coloration and moisture retention. (B)</p> Signup and view all the answers

What primarily causes taste in water?

<p>Mineral content (A)</p> Signup and view all the answers

Which of the following is NOT a source of biological impurities in water?

<p>Heavy metals (B)</p> Signup and view all the answers

At what temperature is water most dense?

<p>4 degrees Celsius (A)</p> Signup and view all the answers

What factor primarily influences the pH value of a substance?

<p>Number of hydrogen ions present (D)</p> Signup and view all the answers

What type of polymers are classified as natural?

<p>Polymers found in plants and animals (D)</p> Signup and view all the answers

What best describes the suspended organic compounds in water?

<p>Result from decayed biological matter (D)</p> Signup and view all the answers

What is one consequence of the unhygienic discharge of sewage into water bodies?

<p>Development of pathogenic microorganisms (B)</p> Signup and view all the answers

Which of these compounds does NOT contribute to odor in water?

<p>Sulfur dioxide (A)</p> Signup and view all the answers

What is the primary characteristic of gamma decay?

<p>Emission of high energy electromagnetic radiation (D)</p> Signup and view all the answers

Which statement correctly describes mass defect?

<p>It is the difference between the masses of nucleons and the nucleus. (C)</p> Signup and view all the answers

What process does positron emission involve?

<p>Conversion of a proton into a neutron (A)</p> Signup and view all the answers

What is the outcome of nuclear fission?

<p>Splitting of a heavy nucleus into lighter nuclei (C)</p> Signup and view all the answers

Which unit cell has the highest atomic packing factor (APF)?

<p>Face Centered (B)</p> Signup and view all the answers

What does the coordination number (CN) indicate?

<p>The number of nearest neighbors each atom has (B)</p> Signup and view all the answers

What describes the atomic packing factor (APF)?

<p>It is the ratio of atom volume to empty space. (B)</p> Signup and view all the answers

Which of the following correctly describes nuclear fusion?

<p>It involves combining two light nuclei to form a heavier nucleus. (B)</p> Signup and view all the answers

What characterizes body-centered cubic unit cells?

<p>Includes a lattice point in the center (B)</p> Signup and view all the answers

Which type of crystal structure uses every lattice point as a unit cell vertex?

<p>Primitive (B)</p> Signup and view all the answers

What feature makes gamma rays particularly penetrating?

<p>Electromagnetic radiation nature (C)</p> Signup and view all the answers

Which application uses specific nuclides to determine the age of an object?

<p>Radiocarbon Dating (C)</p> Signup and view all the answers

How is the volume of a simple cubic cell calculated?

<p>$8r^3$ (B)</p> Signup and view all the answers

Flashcards

Gamma Decay

A type of nuclear decay where a nucleus emits a high-energy photon (gamma ray) to transition to a lower energy state. The parent nuclide remains the same.

Positron Emission

Involves the conversion of a proton into a neutron, releasing a positron. The positron is the antiparticle of an electron, same mass but opposite charge.

Nuclear Fission

Process where a heavy nucleus splits into two or more lighter nuclei, releasing subatomic particles and energy.

Nuclear Fusion

Combination of two light nuclei to form a heavier nucleus, releasing enormous amounts of energy.

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Radiocarbon Dating

A method of determining the approximate age of an object by measuring the amount of a specific radioactive nuclide present.

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Crystallography

The study of the arrangement of atoms in solids.

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Crystal

A solid material with a highly ordered and symmetrical structure that extends over macroscopic distances.

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Unit Cell

The smallest repeating unit in a crystal lattice, representing the complete crystal structure.

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Simple Cubic

Type of unit cell with atoms only at the corners of the cube.

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Body Centered

Type of unit cell with atoms at the corners and one atom in the center of the cube.

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Face Centered

Type of unit cell with atoms at the corners and one atom in the center of each face of the cube.

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Coordination Number (CN)

The number of nearest neighbors that each atom has within a crystal structure.

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Atomic Packing Factor (APF)

The ratio of the volume occupied by atoms to the total volume of the unit cell, indicating the packing efficiency of atoms in a crystal.

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Fuels

Substances that burn to release energy, categorized as solid, liquid, or gas.

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Lignite Coal

A type of coal formed by the compaction of peat due to burial, containing a higher percentage of carbon compared to lignite, and with a lower moisture content, making it suitable for use in various industries.

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Coke

A solid fuel obtained by heating coal in the absence of oxygen. It's characterized by a high carbon content, making it burn efficiently with minimal ash and sulfur content.

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Charcoal

A type of fuel produced by partially burning wood or animal matter, leaving behind a porous, carbon-rich material. It burns with little smoke and ash, releasing significant energy.

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Liquid Fuels

A fuel derived from the fossilized remains of dead plants and animals, formed by pressure and heat deep within the Earth's crust. It's a complex mixture of hydrocarbons and is found in various forms, including gasoline and oil.

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Gasoline

A blend of volatile hydrocarbon compounds used as fuel in internal combustion engines. It's also used as a solvent for oils and fats.

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Catalytic Cracking

A process that breaks down large hydrocarbon molecules in crude oil into smaller, more valuable components like gasoline, diesel, and kerosene. This process involves heat, pressure, and catalysts.

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Fractional Distillation

A process that separates different components of a mixture based on their boiling points. This is used to refine crude oil and separate it into various products.

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Refined Petroleum Products

A wide range of products derived from crude oil through refining processes. These include transportation fuels, heating oils, plastics, and even asphalt.

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Biogas

A type of biofuel produced by the breakdown of organic waste in the absence of oxygen. It mainly consists of methane gas.

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Natural Gas

A naturally occurring gaseous hydrocarbon composed primarily of methane, found deep underground. It's used for heating, cooking, and electricity.

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Producer Gas

A mixture of gases, mainly carbon monoxide and hydrogen, produced by partial combustion of carbonaceous materials like coal. It's used as an industrial fuel.

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Gaseous Fuels

Gaseous fuels obtained from natural sources or processed from solid or liquid fuels. They are often used for energy generation.

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Anaerobic Decomposition

The breakdown of organic matter in the absence of oxygen, producing a mixture of gases, primarily methane. It's a core process in biogas production.

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Methane

The primary component of biogas. It's a highly flammable and potent greenhouse gas.

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Biogas Production

The process where microbes break down organic matter in the absence of oxygen to create biogas. It's a vital part of biogas production.

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Heating Value

The energy content of a fuel, typically measured in kilowatts per hour or BTUs. It determines how much heat energy a fuel can release.

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Sandy Soil

A type of soil with large particles (greater than 2mm) that are easily visible and feel gritty, allowing water to drain quickly but making it harder for plants to absorb nutrients.

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Silt Soil

A soil type with fine, medium-sized particles (between 0.05mm and 0.002mm) that feel floury and powdery, holding moisture well but prone to compaction, making it ideal for many plants.

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Clay Soil

A soil type with the smallest particles (less than 0.002mm), making it heavy and sticky, capable of retaining water and nutrients but potentially difficult for plant roots to penetrate.

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A Horizon (Top Soil)

The uppermost layer of soil, rich in organic matter and essential for plant growth, where seeds germinate and roots grow.

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Peat Soil

A soil type with a significant amount of partially decomposed plant matter in it, often found in areas with waterlogged conditions and high organic content.

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O Horizon (Organic)

The topmost layer of soil, primarily composed of decomposed organic matter (humus) and partially decayed leaves and twigs. It's rich in nutrients and essential for plant growth.

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A Horizon

A layer of soil enriched with organic matter, often dark in color due to the presence of humus. This layer is essential for plant growth and retains moisture.

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E Horizon (Eluviation)

A soil layer characterized by the leaching of minerals and organic matter. It's often pale in color and found beneath the A horizon in older soils.

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B Horizon (Subsoil)

A layer of soil that has been significantly altered by pedogenesis. It accumulates minerals and organic matter migrating downwards, often containing iron oxides and clay minerals.

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C Horizon (Regolith)

A layer of soil consisting of slightly broken-up bedrock, representing the parent material from which other soil layers develop. It's the foundation beneath the subsoil.

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Soil Horizons

A soil's inherent characteristics, including color, texture, structure, and chemical composition. It's influenced by parent material, climate, and biological activity.

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Organic Compounds in Water

Dissolved organic compounds in water can be from sources like fats, proteins, and carbohydrates. They can also come from decaying matter, such as fruits or animals.

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pH of Water

The pH of water determines its acidity, neutrality, or basicity. It's calculated using the number of hydrogen ions present. For example, a low pH means the water is acidic.

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Biological Contamination

Biological contamination is caused by the presence of living organisms in water, such as algae, bacteria, viruses, and parasites. These organisms can cause waterborne illnesses if not removed.

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Pollutants and Waterborne Diseases

Pollutants, like bacteria, fungi, and viruses, can enter water bodies due to unhygienic discharges of sewage or dead bodies. This can lead to waterborne diseases.

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Polymers

Polymers are large molecules made of repeating units called monomers. They can be natural, semi-synthetic, or synthetic based on their source.

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Natural Polymers

Natural polymers are found in nature and can be derived from plants and animals. Examples include proteins, cellulose, and starch.

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Taste and Odor of Water

The taste of water can be influenced by the presence of dissolved minerals. It usually doesn't have an odor unless organic compounds are present.

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Temperature and Water Density

Water temperature affects its density and other properties. It's most dense at 4 degrees Celsius (39 degrees Fahrenheit) and less dense at higher or lower temperatures.

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Study Notes

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