Question

A process is spontaneous if :
A. $(\Delta G_{\text{system}})_{T, P} = 0$
B. $\Delta S_{\text{system}} + \Delta S_{\text{surrounding}} > 0$
C. $\Delta S_{\text{system}} + \Delta S_{\text{surrounding}} < 0$
D. $(\Delta G_{\text{system}})_{T, P} < 0$
E. $(\Delta G_{\text{system}})_{T, P} > 0$
Choose the correct answer from the options given below :

• A. A, B, D only
• B. A, C, E only
• C. B, E only
• D. B, D only

Hint:

Remember the signs: Spontaneous means the universe gets messier ($\Delta S_{univ} > 0$) and the system loses free energy ($\Delta G < 0$). Equilibrium is when everything is perfectly balanced ($\Delta S_{univ} = 0$, $\Delta G = 0$).

Answer 1

The Correct Option is D