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Examine the following reaction:

NH4Cl (s)→NH3 (g)+HCl (g)ΔH0=176 kJ

At 25 °C, this reaction has a ΔG0 of 91.1 kJ.

What is the ΔS0 of this reaction?

2 answers

dGo = dHo - TdSo
91100 = 176,000 - 298^dSo
Solve for dSo in Joules.

It's, 0.285 kJ/K

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