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:
A
`1.57 atm`
B
`2.57 atm`
C
`3.57 atm`
D
`4.57 atm`
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The correct Answer is:
d
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