# Are specific heat capacity and boiling point of a substance related or proportional to each other?

That is, if the substance has a high specific heat, will it also have a high boiling point? ( and vice versa)

• No. The isobaric heat capacity of water is 4.1813 $J\cdot K^{-1}\cdot g^{-1}$. For tin it is 0.227, but tin has a much higher melting point than water.
– MaxW
Commented Nov 4, 2018 at 18:36
• Someone in my group thought that since water has a high specific heat, i.e., it is resistant to heat changes, it would not boil as fast as other substances. Is that because boiling is affected by vapor pressure and other factors?
– suse
Commented Nov 4, 2018 at 20:12

According to the Ehrenfest classification, during a first-order transition (such as boiling) the heat capacity $$C$$ goes to infinity. This makes sense, since at the transition point the temperature does not change with input of heat and $$C = dQ/dT$$. This and other considerations add a little complexity to the problem, as it requires you to state which heat capacity (at which T) you are talking about.