The entropy change for a non-spontaneous reaction is 140 J K -1 mol -1 at 298 K. The reaction is

Question

The entropy change for a non-spontaneous reaction is 140 J K -1 mol -1 at 298 K. The reaction is (A) reversible (B) irreversible (C) exothermic (D) endothermic

Tardigrade Admin · Accepted Answer

Since the reaction is non - spontaneous. ∴ Δ G is positive. As Δ S is positive (given) hence Δ H must be positive also. It means reaction is endothermic.

Q. The entropy change for a non-spontaneous reaction is $140 J K^{- 1} m o l^{- 1}$ at $298 K$ . The reaction is

reversible

irreversible

exothermic

endothermic

Since the reaction is non - spontaneous.

$∴ Δ G$ is positive.

As $Δ S$ is positive (given) hence $Δ H$ must be positive also. It means reaction is endothermic.

Q. The entropy change for a non-spontaneous reaction is 140JK−1mol−1 at 298K. The reaction is