One mole of a monoatomic real gas satisfies the equation `p(V-b)=RT` where `b` is a constant. The relationship of interatomic potential `V(r)` and interatomic distance `r` for gas is given by

Options

A.
B.
C.
D.

Answer

C

Explanation

Equation of stage `p(v-b) = RT` indicates that inter molecular forces of attraction or repulsion are absent. As a result. Interatomic potential `V_(r)` remains constant on increasing pressure in the beginning. As the molecular come very close on increasing pressure. their electronic and nuclear repulsion leading to interatomic potential increases abrupty.