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- 1. Multiple Choice
What does Gibbs Free Energy tell us?
How much energy is given off by a reaction.
The tendency of a reaction to become "random"
How spontaneous a reaction is.
- 2. Multiple Choice
What information do we need to perform a calculation of Gibbs Free Energy?
Enthalpy of the reaction.
Entropy of the reaction.
The temperature of the reaction in Kelvin.
All of the above are needed.
- 3. Multiple Choice
Which of the following would most likely lead to a spontaneous reaction.
A high negative enthalpy.
A low negative enthalpy.
A high positive enthalpy.
A low positive enthalpy.
- 4. Multiple Choice
What are the best conditions to lead towards a spontaneous reaction?
high negative enthalpy, high temp, high negative entropy
high positive enthalpy, high temp, high negative entropy
high negative enthalpy, low temp, high positive entropy
high negative enthalpy, high temp, high positive entropy.
- 5. Multiple Choice
Your enthalpy is high and negative but your entropy is also negative. What type of temperature would you want to get a spontaneous reaction?
low
high
- 6. Multiple Choice
Your enthalpy is positive and your entropy is positive. What type of temperature would you want to ensure a spontaneous reaction.
very high
very low
- 7. Multiple Choice
Your enthalpy is +20 and your entropy is +5. Which temperature will give a spontaneous reaction?
0
4
8
- 8. Multiple Choice
Your enthalpy is -20 and your entropy is -8. Which temperature will give you a spontaneous reaction?
1
3
5
- 9. Multiple Choice
Which of the following situations demonstrates high entropy?
water freezing
water vaporizing
steam condensing to water
- 10. Multiple Choice
A spontaneous reaction is more profitable to a company.
True
False
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