The standard enthalpy and entropy changes for the reaction in equilibrium for the forward reaction are given below.
Correct answer: C. At 300 K, Kp > 1
- A. The reaction proceeds in the forward direction at 300 K
- B. At 1200 K, the reaction proceeds in the reverse direction
- C. At 300 K, Kp > 1
- D. At 300 K, the products will be favored more than reactants at equilibrium
Explanation
The correct answer is Option C because at 300 K; Kp > 1. In an exothermic reaction, decreasing the temperature shifts the equilibrium toward the products, which increases the equilibrium constant (Kp > 1).
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About Thermochemistry and Energetics of Chemical Reactions
Thermochemistry measures energy changes in chemical reactions and distinguishes exothermic from endothermic processes. Work covers systems, surroundings and state functions, internal energy, the first law of thermodynamics, enthalpy and Hess's law, including the sign conventions used when heat enters or leaves a system.
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