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For the reaction, H2(g) + I2(g) hArr 2H...

For the reaction, `H_2(g) + I_2(g) hArr 2HI(g)` , the standard free energy is `DeltaG^(0) gt 0`. The equilibrium constant (K) would be

A

`K=0`

B

`K gt 1`

C

`K=1`

D

`K lt 1`

Text Solution

Verified by Experts

The correct Answer is:
D
`DeltaG^(Theta) and K` are related as `DeltaG^(Theta)=-RT ln K_c`
when `G^(Theta) gt 0` means `DeltaG^@` is positive. This can be so only if in `K_c` is negative i.e., `K_c lt 1`
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