Fossil Fuel Impact Overview

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Questions and Answers

What percentage of greenhouse gases is fossil fuel responsible for releasing?

  • 50%
  • 30%
  • 70% (correct)
  • 90%

Which of the following is a consequence of climate change mentioned in the content?

  • Extinction of species (correct)
  • Improved food production
  • Increased species diversity
  • Reduced energy costs

What type of acids are generated from the combustion of fossil fuels?

  • Citric and ascorbic acids
  • Sulfuric and nitric acids (correct)
  • Phosphoric and hydrochloric acids
  • Formic and acetic acids

What materials are released into the atmosphere from fossil fuels?

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

How do energy prices affect the economy, according to the content?

<p>They indirectly affect virtually every part of the economy. (C)</p> Signup and view all the answers

The total marks for the Energy Materials course is 120.

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

Class tests in the Energy Materials course are worth 20 marks.

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

Students have to give presentations each day, which last for 8 minutes.

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

The course instructor for Energy Materials is Ankit Dev Singh.

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

The evaluation pattern includes a final exam comprising only multiple-choice questions.

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

The mean score of the grade distribution is 55.06.

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

The grade bin for grade B includes scores from 71.5 to 65.

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

Secondary batteries are also known as primary batteries.

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

Grade E has the highest frequency of students with a total of 0.

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

Rechargeable batteries can be categorized as first-generation energy materials.

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

Flashcards

Fossil fuel impact on GHG

Fossil fuels release a significant portion (70%) of greenhouse gases, primarily CO2.

Climate change ecosystem effect

Climate change negatively impacts ecosystems globally by contributing to species extinction and reduced food production (hunger).

Acid rain source

Burning fossil fuels creates sulfuric and nitric acids, leading to acid rain.

Fossil fuel radioactive content

Fossil fuels contain radioactive materials like uranium and thorium, released into the atmosphere.

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Offshore drilling aquatic hazard

Offshore oil drilling endangers aquatic life.

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Electrochemical Power Sources

A category encompassing technologies like batteries, fuel cells, and supercapacitors for storing and releasing electrical energy.

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Fuel Cells

Devices converting chemical energy from fuels like hydrogen into electricity through electrochemical reactions.

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Supercapacitors

Energy storage devices that store energy electrostatically, allowing rapid charging and discharging compared to batteries.

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Advanced Batteries: Materials Science Aspects

A book focusing on the materials science involved in developing and improving batteries.

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Handbook of Batteries

A comprehensive resource providing in-depth technical information about various types of batteries.

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Battery Types

Batteries are broadly classified into primary and secondary batteries. Primary batteries are single-use, while secondary batteries are rechargeable.

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Lithium-ion Battery Components

Lithium-ion batteries consist of a negative electrode (anode), a positive electrode (cathode), and an electrolyte.

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Electrochemical Energy Storage

Electrochemical energy storage involves converting chemical energy to electrical energy and vice versa, using electrochemical reactions.

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Negative Electrode (Anode)

The negative electrode, or anode, is where oxidation occurs, releasing electrons and forming positively charged ions.

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Positive Electrode (Cathode)

The positive electrode, or cathode, is where reduction occurs, accepting electrons and forming negatively charged ions.

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Study Notes

Fossil Fuel Impact

  • Fossil fuels account for 70% of greenhouse gas emissions, primarily CO2.
  • Climate change negatively impacts ecosystems globally.
  • This leads to species extinction and reduced food production, exacerbating world hunger.
  • Combustion of fossil fuels creates sulfuric and nitric acids, causing acid rain.
  • Fossil fuels contain radioactive materials (uranium and thorium) released into the atmosphere.
  • Offshore oil drilling endangers aquatic life.
  • Fossil fuel wells release methane through fugitive emissions.
  • Coal transport sometimes uses diesel locomotives, and oil transport uses tanker ships, consuming more fossil fuels.
  • Energy prices significantly impact global inflation, affecting most economic sectors.

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