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Enthalpy

Posted: Sat Jan 25, 2020 5:52 pm
by Vanessa Rojas 4F
Why do vapors have higher enthalpies than liquids?

Re: Enthalpy

Posted: Sat Jan 25, 2020 6:11 pm
by Bryce Barbee
Vapors have a higher enthalpy than liquids because once the temperature of the system, in a water model, hits 100 degrees celsius there is more heat that is required to change the water from a liquid state to a gaseous state. This is compared to when water is at a solid ice state and needs less heat to change it into liquid water state.

Re: Enthalpy

Posted: Sat Jan 25, 2020 7:31 pm
by Anika Chakrabarti 1A
In the heating curve graph that Lavelle showed in class, the amount of energy needed for melting is much lower than the energy required for vaporization. This means that heat is absorbed in order to go from a liquid to a vapor, so the vapor would have a higher enthalpy.