For an endothermic reaction: 4A(g) + B₂(g) ⇌ 2A₂B(g). Match the changes with graphs. — Chemical Equilibrium Chemistry Question

💡 Solution & Explanation

Graph D: Smooth shifts favoring products (III). Matches temperature increase (A). Graph C: All concentrations spike up instantly, then shift forward. Matches pressure increase via volume decrease (B). Graph B: Product III spikes up instantly, then reaction shifts backward. Matches adding A₂B (C). Graph A: All concentrations spike down instantly, then reaction shifts backward (to more moles). Matches volume increase (E) and inert gas at constant pressure (D). Therefore, correct answer is 1-D,E, 2-C, 3-B, 4-A.