The equilibrium constants for the reaction: A₂ ⇌ 2A at 500 K and 1000 K are 1 × 10⁻¹⁰ and 1 × 10⁻⁵, — Chemical Equilibrium Chemistry Question

💡 Solution & Explanation

The equilibrium constant increases from 10⁻¹⁰ to 10⁻⁵ as the temperature is raised from 500 K to 1000 K. An increase in the equilibrium constant with an increase in temperature is characteristic of an endothermic reaction according to Le Chatelier's principle. Therefore, correct answer is D.