A Few Entropy Questions! Help Needed.?

Question

Question:

(a) What is the entropy of a perfect crystal at 0 K?
(b) Does entropy increase or decrease as the temperature rises?
(c) Why is H(enthalpy) = 0 but S(entropy) > 0 for an element?

My Approach:
(a) I really have no idea...We weren't provided any info about the perfect crystal (even though the temp was given)
(b) entropy increases b/c it approaches vaporization?
(c) non-spontaneous? i really have no clue here.

Thanks to those who provide me the extra help I need to get through this only question I have from my homework!

Answer 1

a) Zero (3rd law of Thermodynamics)
b) Increases
c) An element is the lowest stage possible.