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At −73∘C, the process X⟶Y+Z has a standard free energy change of 11.5kJmol. What is the...

At −73∘C, the process X⟶Y+Z has a standard free energy change of 11.5kJmol. What is the free energy change (in kilojoules per mole) at the same temperature with [X]=0.65 M, [Y]=1.8M, and [Z]=2.5M? The universal gas constant is 8.314Jmol K. Your answer should have three significant figures. (Round your answer to one decimal place). Do not include units in your answer.

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Answer #1

X⟶Y+Z            G0 = 11.5KJ/mole   = 11500J/mole

T   = -73+273 = 200K

[X]=0.65 M, [Y]=1.8M, and [Z]=2.5M

Kc   = [Y][Z]/[X]

       = 1.8*2.5/0.65   = 6.923

G     = G0 + RTlnKc

           = 11500+ 8.314*200*ln6.923

             = 11500 + 8.314*200*1.9348

             = 14717J/mole    = 14.717KJ/mole   

           round off 14.7KJ/mole

               14.7 >>>>answer

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