Practice Free Energy Problems II

For all of the problems below, here is the reaction: A <=> B. Assume in each case that the temperature is 300 K, except as noted.

1. What is the Delta G^{0'} for a reaction if the Delta G is -20 kJ/mol when there is 5 times as much A as B?

2. When the Delta G for a reaction is -10 kJ/mol and the Delta G^{0'} is -10 kJ/mol, what is the ratio of A to B?

3. If the ratio of A/B in #1 stays the same, what happens to the Delta G when the temperature drops 50 degrees?

4. A reaction is favorable when there is twice as much A as B and also when there is twice as much B as A. Is this possible? If not, why not. If so, explain.