Biomass and Biofuel Lecture 1: Introduction
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Questions and Answers

What type of energy is typically released in combustion reactions?

  • Chemical energy
  • Kinetic energy
  • Potential energy
  • Thermal energy (correct)

In the combustion of methane, which bonds are broken?

  • Hydrogen-oxygen bonds
  • Carbon-carbon bonds
  • Carbon-oxygen bonds
  • Carbon-hydrogen bonds (correct)

What is the product of the combustion of methane in terms of chemical compounds?

  • CO2 and H2O (correct)
  • CO and H2
  • C and O2
  • CH4 and O2

Which is not a form of biomass energy mentioned in the text?

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

What characterizes the new bonds formed in the combustion of methane?

<p>Less energy than original bonds (B)</p> Signup and view all the answers

What is the primary source of energy for biomass?

<p>The sun (D)</p> Signup and view all the answers

Which of the following is NOT a way to transform the energy from biomass into usable energy?

<p>Separating biomass into its elemental components (C)</p> Signup and view all the answers

Which of the following cycles is biomass NOT involved in?

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

What is the relationship between chemical bonds and energy?

<p>The amount of energy required to form a bond is the same as the amount released when it is broken (B)</p> Signup and view all the answers

How does biomass affect the environment according to the passage?

<p>Biomass affects and is affected by the carbon, nitrogen, phosphorus, and sulfur cycles (C)</p> Signup and view all the answers

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