About the entropy at absolute zero temperature. This is directly addressed by the Third Law of Thermodynamics.

B.

The question asks about the entropy at absolute zero temperature. This is directly addressed by the Third Law of Thermodynamics.

The Third Law of Thermodynamics states that the entropy of a perfect crystal at absolute zero (0 Kelvin) is zero. This means that at absolute zero, a system is in its most ordered state, and there is no thermal motion, leading to the lowest possible entropy.

• A. Maximum: This is incorrect. Entropy tends to increase with temperature.
• B. Minimum: This is correct. At absolute zero, entropy reaches its minimum possible value (zero for a perfect crystal).
• C. Infinite: This is incorrect.
• D. Undefined: This is incorrect.

The correct option is B.