First slide

2nd Law of Thermodynaimcs

Question

Statement I: For a process to be spontaneous, the change in free energy must be negative.
Statement II : The change in entropy for a process must always be positive if it is spontaneous.

Moderate

A

Statement I and Statement II are true.
B

Statement I is true and statement II is false.
C

Statement I is false and Statement II is true.
D

Statement I and Statement II are false.

Solution

$\Delta G_{sys}=-T\Delta S_{Total}$
$\Delta G$ considers only system
$\Delta S$ consider system as well as surroundings

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