For a certain process,at 300.K,ΔG = -37.2 kJ and ΔH = -7.0 kJ.If the process is carried out reversibly,what is the amount of useful work that can be performed?
A)-7.0 kJ
B)-44.2 kJ
C)-30.2 kJ
D)30.2 kJ
E)-37.2 kJ

Question

Quizplus · Accepted Answer

The amount of useful work that can be performed in a process carried out reversibly is given by the Gibbs free energy change (ΔG). In this case, ΔG = -37.2 kJ, indicating that the maximum amount of useful work that can be performed is 37.2 kJ, but since work done by the system is considered negative, the correct answer is -37.2 kJ.

For a Certain Process,at 300