9. Thermochemistry

Entropy And Free Energy — Quiz

Test your understanding of entropy and free energy with 5 practice questions.

Practice Questions

Question 1

What is the relationship between $\Delta G$, $\Delta H$, and $\Delta S$ at constant temperature?

Question 2

Which of the following processes would result in a decrease in the system’s entropy?

Question 3

A reaction has $\Delta H = 80 \; \text{kJ}$ and $\Delta S = 250 \; \text{J/K}$. At $500 \; \text{K}$, what is $\Delta G$?

Question 4

Which of the following scenarios will most likely have the largest positive entropy change?

Question 5

At what temperature does a reaction with $\Delta H = 60 \; \text{kJ}$ and $\Delta S = 200 \; \text{J/K}$ become spontaneous?