First slide

3rd law of thermo dynamics

Question

Statement I : Entropy of a perfect crystalline substance at absolute zero is zero.
Statement II : At absolute zero, translational kinetic energy of a system is zero.

Easy

A

Statement I and Statement II are true.
B

Statement I is true and statement II is false.
C

Statement I is false and Statement II is true.
D

Statement I and Statement II are false.

Solution

(I) Entropy is related to disorder at absolute Zero there is perfect order and is taken as zero
(II) The movement of gas molecules is ceased at absolute zero

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