Is Entropy Zero at Absolute Zero?

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At absolute zero (0 K), the entropy of a perfect crystal is theoretically zero due to the lack of disorder in its molecular arrangement. However, atoms can still exhibit zero-point energy, which implies that they retain some vibrational motion. This leads to confusion about whether entropy can truly be zero, as there are still quantum states available for the molecules. The discussion highlights the distinction between classical and quantum interpretations of entropy at absolute zero. Overall, the concept remains complex and is subject to ongoing scientific debate.
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Hi all,

first of all i would wish to take reference from this thread.

https://www.physicsforums.com/showthread.php?t=129153"

Can someone answer this qns...since atoms at absolute zero can still be vibrating, the entropy will be not zero for all molecules in this world at 0 K right?

Q 1. Pls ans simply, as in give a yes or no ans 1st, then explain, i am quite confused in this topic...:P

Any help will be appreciated!
 
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Q2 .another qns, it is said that a perfect crystal will have zero entropy at 0 K, but shouldn't it have some form of vibrational energy in it(Zero-point energy), with a bit of motion, there should be more that one way to arrange the molecules...so how can it have zero entropy?
 

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