Enthalpies

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Emily Lo 1J
Posts: 50
Joined: Thu Sep 19, 2019 12:16 am

Enthalpies

Postby Emily Lo 1J » Sun Jan 26, 2020 3:52 pm

Is there a relationship between the standard reaction enthalpy and the standard enthalpy of formation?

Kaitlyn Ang 1J
Posts: 116
Joined: Fri Aug 09, 2019 12:17 am
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Re: Enthalpies

Postby Kaitlyn Ang 1J » Sun Jan 26, 2020 3:59 pm

Standard enthalpy of formation () is the standard reaction enthalpy () to form one mole of the substance, which explains why the units for is kJ/mol
Last edited by Kaitlyn Ang 1J on Sun Jan 26, 2020 4:04 pm, edited 1 time in total.

Aman Sankineni 2L
Posts: 103
Joined: Fri Aug 30, 2019 12:17 am

Re: Enthalpies

Postby Aman Sankineni 2L » Sun Jan 26, 2020 4:02 pm

The standard enthalpy of formation is the change in enthalpy that accompanies the formation of one mole of the compound from its elements. The standard enthalpy of reaction occurs in a system when one mole of matter is transformed by a chemical reaction.

Ritu Gaikwad 2E
Posts: 52
Joined: Thu Jul 11, 2019 12:16 am

Re: Enthalpies

Postby Ritu Gaikwad 2E » Sun Jan 26, 2020 4:08 pm

The difference between standard reaction enthalpy and standard enthalpy of formation is that the standard enthalpy of formation is for a substance in its standard state (or in the element's most stable form) whereas standard reaction enthalpy by itself doesn't specific the phase of the substance.


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