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The standard Gibbs free energy change (D...

The standard Gibbs free energy change `(DeltaG^(@))` at `25^(@)C` for the dissociation of `N_(2)O_(4)(g)` to `NO_(2)(g)` is (given, equilibrium constant = 0.15, R=8.314 `JK^(-) mol^(-1)`)

A

1.1 kJ

B

4.7 kJ

C

8.1 kJ

D

38.2 kJ

Text Solution

Verified by Experts

The correct Answer is:
B
`Delta G^(@)= -RT ln K= -2.303 xx 8.314 xx 10^(-3) xx 298 xx log_(10) (0.15)= 4.7kJ`
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