Which of the following reactions is said to be entropy driven?

Question

Which of the following reactions is said to be entropy driven? (A) Endothermic reaction with positive entropy change at high temperature (B) Endothermic reaction with negative entropy change at low temperature (C) Exothermic reaction with positive entropy change at high temperature (D) Exothermic reaction with negative entropy change at low temperature

Tardigrade Admin · Accepted Answer

For endothermic reaction, Δ H=+ ve . For reaction to be spontaneous, Δ S must be positive and also T Δ S must be greater than Δ H in magnitude. The reaction is then said to be entropy driven.

Q. Which of the following reactions is said to be entropy driven?

Endothermic reaction with positive entropy change at high temperature

Endothermic reaction with negative entropy change at low temperature

Exothermic reaction with positive entropy change at high temperature

Exothermic reaction with negative entropy change at low temperature

For endothermic reaction, $Δ H = + v e .$ For reaction to be spontaneous, $Δ S$ must be positive and also $T Δ S$ must be greater than $Δ H$ in magnitude. The reaction is then said to be entropy driven.

Q. Which of the following reactions is said to be entropy driven?

Endothermic reaction with positive entropy change at high temperature

Endothermic reaction with negative entropy change at low temperature

Exothermic reaction with positive entropy change at high temperature

Exothermic reaction with negative entropy change at low temperature

For endothermic reaction, ΔH=+ve. For reaction to be spontaneous, ΔS must be positive and also TΔS must be greater than ΔH in magnitude. The reaction is then said to be entropy driven.

For endothermic reaction, $Δ H = + v e .$ For reaction to be spontaneous, $Δ S$ must be positive and also $T Δ S$ must be greater than $Δ H$ in magnitude. The reaction is then said to be entropy driven.