4. Reactivity 1 — What Drives Chemical Reactions(QUESTION)

Gibbs Free Energy — Quiz

Test your understanding of gibbs free energy with 5 practice questions.

Practice Questions

Question 1

What does Gibbs free energy, $\Delta G$, tell us about a reaction at constant temperature and pressure?

Question 2

Which equation correctly relates Gibbs free energy, enthalpy, entropy, and temperature?

Question 3

A reaction has $\Delta H = -50\,\text{kJ mol}^{-1}$ and $\Delta S = -100\,\text{J K}^{-1}\text{mol}^{-1}$. What is $\Delta G$ at $298\,\text{K}$?

Question 4

If a reaction has $\Delta G < 0$, what does this mean?

Question 5

Which change would usually make a reaction more likely to have a negative $\Delta G$ when $\Delta S$ is positive?