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Calculate the standard entropy, ΔS°rxn, of the following reaction at 25.0 °C using the data in...

Calculate the standard entropy, ΔS°rxn, of the following reaction at 25.0 °C using the data in this table. The standard enthalpy of the reaction, ΔH°rxn, is –633.1 kJ·mol–1. 3C2H2(g)==>C6H6(l)

Delta S rxn =

Then calculate the standard gibbs free energy of the reaction Delta G rxn

Delta G rxn=

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Answer #1

3C2H2(g)==>C6H6(l)

ΔH°rxn, = ΔH°f products -ΔH°f reactans

              = 49.08-3*227.48   = -633.36KJ

ΔS°rxn, = ΔS°f products -ΔS°f reactans

             = 173.4 -3*200.9   = -429.4J/Mole-K   = -0.4294Kj/mole-K

ΔG0      = ΔH-TΔS

              =- 633.1-298*-0.4294   = -505.14KJ

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