Question Detail

CHM 101 CHM 101 Past Questions Objective Question

Question

Why does a given exothermic heat release produce a much larger increase in Delta S_surr at low temperatures than at high temperatures?
Options
A The surrounding molecules move faster at lower temperatures
B Delta S_surr is inversely proportional to the absolute temperature
Correct Answer
C The Boltzmann constant increases as temperature drops
D Enthalpy changes decrease proportionally as temperature decreases
Correct Answer

Option B is the correct answer.

Detailed Explanation

Since Delta S_surr = -Delta H_sys / T, a smaller absolute temperature denominator results in a larger magnitude for Delta S_surr.

Hint

No hint available

Question Info