Q. In which of the following condition a chemical reaction can not occur?
A) $\mathrm{\Delta}H$ and $\mathrm{\Delta}S$ increase and $T\mathrm{\Delta}S > \mathrm{\Delta}H$
B) $\mathrm{\Delta}H$ and $\mathrm{\Delta}S$ decrease and $\mathrm{\Delta}H > T\mathrm{\Delta}S$
C) $\mathrm{\Delta}H$ increase and $\mathrm{\Delta}S$ decreases
D) $\mathrm{\Delta}H$ decreases and $\mathrm{\Delta}S$ increases
Explanation
(c)
If $\mathrm{\Delta}H = +$ ve and $\mathrm{\Delta}S = -$ ve then the reaction is spontaneous
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.