An endothermic reaction is found to have +ve entropy change. The reaction will be

Question

An endothermic reaction is found to have +ve entropy change. The reaction will be (A) possible at high temperature (B) possible only at low temperature (C) not possible at any temperature (D) possible at any temperature.

Tardigrade Admin · Accepted Answer

Given, Δ S = + ve and Δ H = +ve Now, Δ G = Δ H - T Δ S For a reaction to be spontaneous, Δ G should be -ve, which is possible only at high temperature i.e. when TΔ S > Δ H

Q. An endothermic reaction is found to have $+ v e$ entropy change. The reaction will be

possible at high temperature

possible only at low temperature

not possible at any temperature

possible at any temperature.

Given, $Δ S = + v e$ and $Δ H = + v e$
Now, $Δ G = Δ H - T Δ S$
For a reaction to be spontaneous, $Δ G$ should be -ve, which is possible only at high temperature i.e. when $T Δ S > Δ H$

Q. An endothermic reaction is found to have +ve entropy change. The reaction will be