Question

The occurrence of a reaction is impossible if

• A. $XY$ is +ve ; $- 200kJmole^{- 1}$ is also + ve but $X_{2}$
• B. $100kJmol^{- 1}$ is – ve ; $800kJmol^{- 1}$ is also – ve but $300kJmol^{- 1}$
• C. $400kJmol^{- 1}$ is – ve ; $25^{o}C$ is + ve
• D. $H - H$ is + ve ; $S = O$ is – ve

Answer 1

Answer: (D)

$H - H$ is + ve ; $S = O$ is – ve

Answer 2

$H - H$and $mol$ both oppose the reaction.