Multiple Choice
For the reaction PCl5(g) → PCl3(g) + Cl2(g) at 298 K,Keq = 1.87 × 10-7,ΔrS° = 181.92 J/mol K.Compute ΔrH° for this reaction.
A) 15.8 kJ/mol
B) 220 kJ/mol
C) 143 kJ/mol
D) 54.2 kJ/mol
E) 92.6 kJ/mol
Correct Answer:
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