Enthalpy of a reaction at 27oC is 15 kJ mol-1. The reaction will be feasible if entropy is

Question

Enthalpy of a reaction at 27oC is 15 kJ mol-1. The reaction will be feasible if entropy is (A) 15 J mol-1 K-1 (B) -50 J mol-1 K-1 (C) Greater than 50 J mol-1 K-1 (D) Less than 50 J mol-1 K-1

Tardigrade Admin · Accepted Answer

Δ textG < Δ textH - textT Δ textS for spontaneous reaction Δ textG should be - textve textT Δ textS > Δ textH i.e., 3 0 0 Δ textS > text15000 J Δ textS > text50 J textmol text-1 textK text-1

Q. Enthalpy of a reaction at 27^oC is 15 kJ mol^-1. The reaction will be feasible if entropy is

15 J mol^-1 K^-1

-50 J mol^-1 K^-1

Greater than 50 J mol^-1 K^-1

Less than 50 J mol^-1 K^-1

$Δ G < Δ H - T Δ S$ for spontaneous reaction
$Δ G s h o u l d b e - ve$
$T Δ S > Δ H$
i.e., $300Δ S > 15000 J$
$Δ S > 50 J mol^{-1} K^{-1}$

Q. Enthalpy of a reaction at 27oC is 15 kJ mol-1. The reaction will be feasible if entropy is

15 J mol-1 K-1

-50 J mol-1 K-1

Greater than 50 J mol-1 K-1

Less than 50 J mol-1 K-1