Question

Which of the following pairs of a chemical reaction is certain to result in spontaneous reaction ?

• A. Exothermic and decreasing disorder
• B. Endothermic and increasing disorder
• C. Exothermic and increasing disorder
• D. Endothermic and decreasing disorder

Answer 1

Answer: (C)

Exothermic and increasing disorder

Answer 2

$400kJmol^{- 1}$

for spontaneous process $25^{o}C$should be negative in option (3) $H - H$ than

$S = O$ $C \equiv C$