NEET Chemistry Gibbs Free Energy MCQ Question
Consider a diagram that shows a system consisting of water at temperature T_A inside a container with thermally conducting walls, surrounded by a heat reservoir at temperature T_B. The system absorbs heat q from the reservoir, resulting in a change in internal energy ∆U. If the process occurs at constant volume, which of the following correctly describes the relationship between q, ∆U, and the direction of heat flow?
q = ∆U, heat flows from reservoir to system, increasing internal energy.
q = ∆U, heat flows from system to reservoir, decreasing internal energy.
q > ∆U, heat flows from reservoir to system, decreasing internal energy.
q < ∆U, heat flows from system to reservoir, increasing internal energy.
Correct Answer
Detailed Explanation
At constant volume, ∆U = q, and heat flow from the reservoir to the system increases the system's internal energy, as given in the NCERT context.
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