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A ("(l)") to 2 B ( "(g)") ...

` A _ ("(l)") to 2 B _ ( "(g)") `
` Delta U = 2. 1 ` kcal ,` Delta S = 20 ` Cal/k, T = 300 K.
Find ` Delta G ` ( in kcal )

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The correct Answer is:
-2.7 Kcal
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