Consider the equilibrium reaction, \(X(g) + Y(g) \rightleftharpoons W(g) + Z(g)\). The equilibrium constant \(K_C\) for the reaction is \(2.0 \times 10^2\) at 300 K and it decreases with increase in temperature. Which of the following is true for the reaction?
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$K \propto 1/T$ for exothermic; $K \propto T$ for endothermic reactions.