Enthalpy and Heat


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Jessica Castellanos
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Joined: Sat Aug 24, 2019 12:17 am
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Enthalpy and Heat

Postby Jessica Castellanos » Sun Feb 16, 2020 9:22 pm

Can someone explain to me the difference between enthalpy and heat? Are they both transfer of heat?

Eugene Chung 3F
Posts: 142
Joined: Wed Nov 15, 2017 3:03 am

Re: Enthalpy and Heat

Postby Eugene Chung 3F » Sun Feb 16, 2020 9:34 pm

heat is the energy transferred from high temperature to lower temperature whereas enthalpy is heat transfer at a constant pressure. The heat added or lost from system gives the change of enthalpy.

Matthew Chan 1B
Posts: 111
Joined: Sat Sep 07, 2019 12:16 am

Re: Enthalpy and Heat

Postby Matthew Chan 1B » Sun Feb 16, 2020 9:54 pm

Heat is the form of energy transfer from a one temperature to another, like from hot to cold. Enthalpy is the heat transfer at a constant pressure. So the heat added or lost by the system is the enthalpy change.

Ivan Tadeja 1G
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Joined: Fri Sep 28, 2018 12:28 am

Re: Enthalpy and Heat

Postby Ivan Tadeja 1G » Sun Feb 16, 2020 10:14 pm

Matthew Chan 1B wrote:Heat is the form of energy transfer from a one temperature to another, like from hot to cold. Enthalpy is the heat transfer at a constant pressure. So the heat added or lost by the system is the enthalpy change.


Would constant pressure be the only necessary criteria for calculating enthalpy?


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