question_answer

            Using equipartition of energy, the specific heat \[(in\text{ }J\text{ }k{{g}^{-1}}{{K}^{-}}^{1})\] of aluminium at room temperature can be estimated to be (atomic weight of aluminium = 27)          [JEE MAIN 11-04-2015]

A)  25                   

B)       410

C)  925     

D)       1850

Correct Answer: C

Solution :

[c] For metals, there is no free motion but rather oscillation about mean position.

Thus these have K.E. & P.E., which are almost equal.

i.e.

per mole

specific heat