Is Entropy Zero at Absolute Zero?

[Delzac]

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!

 

[Delzac]

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?