Question

The total entropy change ($\Delta S_{total}$) for the system and surrounding of a spontaneous process is given by.

• A. $\Delta S_{total} = \Delta S_{system} + \Delta S_{surr} > 0$
• B. $\Delta S_{total} = \Delta S_{system} + \Delta S_{surr} < 0$
• C. $\Delta S_{system} = \Delta S_{total} + \Delta S_{surr} > 0$
• D. $\Delta S_{surr} = \Delta S_{system} + \Delta S_{total} < 0$

Answer 1

Answer: (A)

$\Delta S_{total} = \Delta S_{system} + \Delta S_{surr} > 0$

Answer 2

: For a spontaneous process, total change in entropy (system + surrounding) should be positive.