Choose the situation below that would result in an exothermic Δ_solutionH. A)when B)when is close to C)when E)There isn't enough information to determine the answer.

Question

Choose the situation below that would result in an exothermic Δ_solutionH. A)when > B)when is close to C)when < D)when > E)There isn't enough information to determine the answer.

Quizplus · Accepted Answer

The entropy change (ΔS) is related to the degree of disorder of a system, meaning that when the system becomes more disordered, the entropy increases, and when it becomes more ordered, the entropy decreases. In this case, when the temperature is increased (option A and D), the degree of disorder of the system can vary, so we cannot determine the sign of entropy change. Option B implies that the system is at equilibrium, so ΔS=0. Option C indicates that a more disordered state is favored, which means that the entropy of the system increases and it is exothermic. Therefore, C is the best choice.

Choose the Situation Below That Would Result in an Exothermic