Enthalpy vs Change in Internal Energy

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WYacob_2C
Posts: 102
Joined: Sat Jul 20, 2019 12:16 am

Enthalpy vs Change in Internal Energy

Postby WYacob_2C » Sat Feb 01, 2020 1:30 am

Can someone explain the main difference between enthalpy and the change in internal energy?

HuyHa_2H
Posts: 100
Joined: Wed Sep 11, 2019 12:15 am

Re: Enthalpy vs Change in Internal Energy

Postby HuyHa_2H » Sat Feb 01, 2020 2:15 am

Enthalpy is just the heat absorbed or released during a reaction and you can just consider the internal energy as just the sum of all of the total energy contained in the system.

Sally Qiu 2E
Posts: 105
Joined: Fri Aug 30, 2019 12:18 am

Re: Enthalpy vs Change in Internal Energy

Postby Sally Qiu 2E » Sat Feb 01, 2020 9:51 am

internal energy includes heat and work. sometimes change in internal energy is equal to change in enthalpy, and this happens when you are at constant pressure and volume.

stephaniekim2K
Posts: 79
Joined: Fri Aug 09, 2019 12:16 am

Re: Enthalpy vs Change in Internal Energy

Postby stephaniekim2K » Sun Feb 02, 2020 10:03 am

Enthalpy is the heat absorbed/released while internal energy is just the total amount of energy.

Caroline Zepecki
Posts: 101
Joined: Fri Aug 09, 2019 12:16 am

Re: Enthalpy vs Change in Internal Energy

Postby Caroline Zepecki » Sun Feb 02, 2020 10:16 am

Enthalpy is specifically the energy absorbed/released, so its only going to be equal to internal energy at a constant pressure and volume.


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