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A reaction has an equilibrium constant of Kp=0.061 at 27 ∘C. Part A Find ΔG∘rxn for...

A reaction has an equilibrium constant of Kp=0.061 at 27 ∘C.

Part A

Find ΔG∘rxn for the reaction at this temperature.

Find for the reaction at this temperature.
6.98 kJ
0.839 kJ
-6.98 kJ
0.628 kJ

Part B

Above what temperature does the following reaction become nonspontaneous?

2 H2S(g) + 3 O2(g) → 2 SO2(g) + 2 H2O(g) ΔH = -1036 kJ; ΔS = -153.2 J/K

298 K
158.7 K
6.762 × 103 K
This reaction is nonspontaneous at all temperatures.
This reaction is spontaneous at all temperatures.

Part C

The value of ΔG° at 261.0°C for the formation of calcium chloride from its constituent elements:

Ca(s) + Cl2(g) → CaCl2(s)

is ________ kJ/mol. At 25.0°C for this reaction, ΔH° is -795.8 kJ/mol, ΔG° is -748.1 kJ/mol, and ΔS° is -159.8 J/K.

-710.4
4.09 × 104
8.46 × 104
-754.1
-881.2
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