The % yield of ammonia as a function of time in the reaction, `N_(2)(g)+3H_(2)(g)hArr2NH_(3)(g)'DeltaHlt0`
at `(p,T_(1))` is given below

If this reaction is conducted at `(p,T_(1))`, with `T_(2)gtT_(1)` the % yield by of ammonia as a function of time is represented by

Options

A.
B.
C.
D.

Answer

B

Explanation

`N_(2(g))+3H_(2(g))underset("endo")overset("exo")hArr2NH_(3(g)),DeltaHlt0`
Initially, with increase in temperature `(T_(2)gtT_(1))%` yield increases.
Afterwards, equilibrium is reached and if the temperature is increased, i.e., heat supplied to the system, then according to Le Chatelier's principle, the equilibrium will shift in the backward sirection, where the heat is absorbed. Hence, the `%` yield decreases.