The degree of dissociation of `I_(2)` "mole"cule at `1000^(@)C` and under `1.0 atm` is `40%` by volume. If the dissociation is reduced to `20%` at the same temperature, the total equilibrium pressure on the gas will be:

Options

A. 1.57 atm
B. 2.57 atm
C. 3.57 atm
D. 4.57 atm

Answer

D