Enthalpy

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Johnathan Smith 1D
Posts: 108
Joined: Wed Sep 11, 2019 12:16 am

Enthalpy

Postby Johnathan Smith 1D » Sun Jan 26, 2020 7:21 pm

What does enthalpy mean?

Zoya Mulji 1K
Posts: 105
Joined: Thu Jul 11, 2019 12:15 am

Re: Enthalpy

Postby Zoya Mulji 1K » Sun Jan 26, 2020 7:24 pm

enthalpy is the study of heat released or absorbed in chemical reactions and physical changes --> the amount of heat released or absorbed at a constant pressure is called enthalpy

Chris Tai 1B
Posts: 102
Joined: Sat Aug 24, 2019 12:16 am

Re: Enthalpy

Postby Chris Tai 1B » Sun Jan 26, 2020 7:50 pm

To build off of this, in thermochemistry the state property of enthalpy is often used, where we care most about the change in enthalpy (deltaH). Through this state property, we can determine whether a reaction is exothermic (deltaH is negative and releases heat) or endothermic (deltaH is positive and the reaction requires input of heat).

Nikki Razal 1L
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Joined: Fri Aug 30, 2019 12:17 am
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Re: Enthalpy

Postby Nikki Razal 1L » Sun Jan 26, 2020 7:53 pm

to add, enthalpy is a state property, means that its value is determined only by its current state, and it is not dependent on the path taken to obtain that state


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