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What is the value of the equilibrium constant, K, for an equilibrium reaction occurring at 58.0...

What is the value of the equilibrium constant, K, for an equilibrium reaction occurring at 58.0 degrees Celsius given that the value of deltaS is 126.98 J/mol and the value of deltaH is 176.93 kJ/mol?

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Answer #1

\DeltaG = \DeltaH - T\DeltaS

       = 176.93 kJ/ mol - 331*0.12698 kJ/ mol

       = -154.19 kJ/ mol

       = -154.19 *103 J/mol

\DeltaG = -RTlnK

K = -\DeltaG/ RT = 154.19 *103 J mol-1/ 331 * 8.315 JK-1mol-1

       = 154.19 *103 J mol-1 /2751.93

      = 56.03

value of equilibrium constant = 56.03

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