Question

For a spontaneous process, the correct statement(s) is (are)

• A. $\left(\Delta G_{\text {system }}\right)_{T, p}>0$
• B. $\left(\Delta S_{\text {system }}\right)+\left(\Delta S_{\text {surroundings }}\right)>0$
• C. $\left(\Delta G_{\text {system }}\right)_{T, p}<0$
• D. $\left(\Delta U_{\text {system }}\right)_{T, v}>0$

Answer 1

Answer: (C)

$\left(\Delta G_{\text {system }}\right)_{T, p}<0$

Answer 2

For a process to be spontaneous, $\Delta S_{\text {system }}+\Delta S_{\text {surrounding }} > 0$ $\left(\Delta G_{\text {system }}\right)_{T, p} < 0$ $\left(\Delta U_{\text {system }}\right)_{T, V} < 0$