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Spontaneous and Non-Spontaneous Reactions

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Chemical Species DeltaHf(kJmol^-1) DeltaGf(kJmol^-1) DeltaS(Jmol^-1K^-1)
SO2(g) -296.8 -300.1 248.2
Cl2(g) 0 - 223.0
SO2Cl2(g) -364.0 -320.0 311.9

For the chemical reaction SO2(g) + Cl2(g) -> SO2Cl2(g), at what temperature does the reaction switch from being spontaneous to non-spontaneous? Report your answer to 4 significant figures.

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Solution Summary

The expert examines the spontaneous and non-spontaneous reactions in chemistry.

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1. Use the standard equations to calculate the enthalpy and entropy of reactions.

deltaHo = [-364 - (-296.8 + 0)] = -67.2 kJ ...

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