9.35

[sahajgill]

Why is container A's entropy is higher than container C's entropy if Container A's atoms are monatomic while C's atoms are diatomic? If they're diatomic, doesn't it make it a bit more complex?

[Farah Ahmad 2A]

I believe it may be due to Container A having a gas, while Container C is just vibrating. Gases are able to move around more, so their entropy will be higher.

[Vincent Chiang 1L]

Container A's change in entropy is higher than that of Container C since Container A's monatomic particles have greater disorder than Container C's diatomic molecules. Complexity of the molecules are important, but in this question's case, we are looking at the rigidity of the structure.