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Chapter 8: Energetics

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1

Khalid is studying endothermic reactions. He knows that dissolving ammonium nitrate in water is endothermic. What happens to the temperature of the solution?

2

Which process requires activation energy?

3

Sam is studying thermochemical reactions. He knows that thermochemical equations include the enthalpy change. Which of the following is a thermochemical equation?

4

What happens to surroundings in an exothermic reaction?

5

What does ΔH represent?

6

Which law explains constant heat change?

7

The peak of an energy profile diagram represents:

8

Chloe is studying the system and surroundings. She knows that in an exothermic reaction, heat flows from the system to the surroundings. What is the sign of q (heat) for the system?

9

George is studying respiration. He knows that aerobic respiration is more efficient than anaerobic respiration. How many ATP molecules are produced from one glucose molecule in aerobic respiration?

10

Energy absorbed during bond breaking is:

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