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Question

For the reaction at 300K
A(g)+B(g)C(g);ΔE=3.0 kcal; ΔS=10.0 cal/K value of ΔG is:

A
600 cal
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B
6600 cal
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C
6000 cal
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D
None
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Solution

The correct option is D None
For the reaction
A(g)+B(g)C(g)
T=300K;ΔE=ΔU3.0 kcal; ΔS=10.0 cal/K
ΔG=ΔHTΔS
ΔH=ΔU+ΔngRT
ΔH=3000+(12)×1.987×300
ΔH=3594 cal
thus ΔG=3594300×(10)
ΔG=594 cal

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