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One kilocalorie is equal to 4,186.8 joules. A particular reaction has a standard free energy change...

One kilocalorie is equal to 4,186.8 joules. A particular reaction has a standard free energy change of −30.5 kJ/mol. What is the standard free energy change in units of kcal/mol? free energy question.

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Answer #1

1 kilocalorie is equal to 4186.8 joules

A particular reaction has free energy change of -30KJ/mol

-30 KJ = -30 x 1000 J = -30000 J

Now 4186.8 J = 1 kcal

So -30000 J = (1 x -30000)/4186.8 Kcal = 7.165 kcal

Therefore, the standard free energy change is equal to 7.165 kcal/mol

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