How does an increase in temperature affect the equilibrium constant (Kc) of an endothermic chemical reaction (Delta H > 0)?
Answer and explanation
Correct answer: C. Increases Kc
For an endothermic reaction (reactants + heat <=> products), adding heat shifts equilibrium to the right, increasing product concentrations and decreasing reactant concentrations, which increases Kc according to the van 't Hoff equation.
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