Gas molecules have very high intermolecular distances as compared to liquids. Due to larger intermolecular distances, the binding energy of gases is also less, as also the excitation band width. Moreover, larger density liquid will have more no. of molecules in a finite space than smaller density gas. read more
* Gas molecules have very high intermolecular distances as compared to liquids. * Due to larger intermolecular distances, the binding energy of gases is also less, as also the excitation band width. read more
I have checked the numbers. Only water has it on all three states. Liq water has the highest, while that of ice and steam is about the same. We are not talking about thermal conductivity here. read more
In TBR, it says that liquid has a higher heat capacity than solid or gas and this is because liquid can absorb the most heat (translational and vibrational) whereas solids absorb only vibrational and gases absorb only translational. read more