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### Enthalpy vs Change in Internal Energy

Posted: Sat Feb 01, 2020 1:30 am
Can someone explain the main difference between enthalpy and the change in internal energy?

### Re: Enthalpy vs Change in Internal Energy

Posted: 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.

### Re: Enthalpy vs Change in Internal Energy

Posted: 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.

### Re: Enthalpy vs Change in Internal Energy

Posted: Sun Feb 02, 2020 10:03 am
Enthalpy is the heat absorbed/released while internal energy is just the total amount of energy.

### Re: Enthalpy vs Change in Internal Energy

Posted: 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.