# The equilibrium constant for a reaction; $A+B \rightleftharpoons C+D$ is $1 \times 10^{-2}$ at 298 K is 2 at 373 K. The chemical process resulting in the formation of C and D is

(a) exothermic

(b) endothermic

(c) unpredictable

(d) There is no relationship between K and $\Delta$ H

On raising temperature K increases. It means the forward reaction is favoured on increasing temperature. Thus, forward reaction should be endothermic.
answered Nov 13, 2013