Question

which of the above order is correct for the standard molar entropies of CH2CL2, CHCL3, CH3CL?​

Answer 1

Both benzene and 1-propanol both have 12 atoms compared to the 6 atoms for methanol. And benzene has a more rigid planar ring structure so 1-propanol has the highest standard molar entropy of all three.

Answer 2

Answer:

S⁰CH3CL (g) < S⁰CH2CL2(g) < S⁰CH3CL (g)