In which of the following plots, an endothermic reaction if correctly represented?

Options

A.
B.
C.
D.

Answer

D

Explanation

`K_(p) " and " T ` are related as follows:
` K_(p) -K_(c) . (RT)^(Delta n_(g))`
where,
` K_(p)` = Equilibrium constant in pressure terms
` K_(c) ` = Equilibrium constant in concentration terms .
R = Gas contant
T = Temperature
` Delta n_(g)` = Gaseous moles of products - gaseous moles of reactants
Therefore ,
` K_(p) prop T ` (for another reaction)
Thus , the plot between `1/T` and In `K_(p) ` is shows a
downward straight line for In ` K_(p)` .
Hence , option (d) is correct .