Question

Which of the following is true for spontaneous process?

• A. $\Delta G>0$
• B. $\Delta G<0$
• C. $\Delta G=0$
• D. $\Delta G=T\Delta S$

Answer 1

The correct option is B $\Delta G<0$

The process which proceeds in a particular direction by its own under a given set of conditions without outside help is called sponataneous process. All natural processes are spontaneous.

Gibb's free energy, $\Delta G<0\Rightarrow$ for spontaneous process

$\Delta G>0\Rightarrow$ for non-spontaneous process

$\Delta G=\Rightarrow$ for equilibrium process