Question

For a reaction to be spontaneous in neither direction, which of the following is/are correct regarding the closed system?
(1) ${\left(\Delta G\right)}_{T,P}=0$
(2)${\left(\Delta G\right)}_{T,P}<0$
(3) ${\left(\Delta G\right)}_{U,V}=0$
(4) ${\left(\Delta G\right)}_{U,V}>0$
Codes:

• A. 1,2,3 are correct
• B. 1 and 2 are correct
• C. 2 and 4 are correct
• D. 1 and 3 are correct

Answer 1

The correct option is D 1 and 3 are correct

$\text{For spontaneous in neither direction:}$

(1) ${\left(\Delta G\right)}_{T,P}=0$
(3) ${\left(\Delta G\right)}_{U,V}=0$
$\text{is correct.}$