Q.

For the reaction at 25° C,

C2H4(g)+H2(g)C2H6(g);Kp=308.08

What is ΔG for this reaction in kJ×mol1 ?

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a

-14.2

b

-19.2

c

0.436

d

-3.71

answer is D.

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Detailed Solution

Gibbs free energy,

ΔG=2.303RTlogKp

=2.303×8.314×2981000log(308.08)


 

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