Enthalpy of Formation Intensive Property

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Michelle Dong 1F
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Enthalpy of Formation Intensive Property

Postby Michelle Dong 1F » Mon Feb 12, 2018 9:23 pm

Is enthalpy of formation an intensive property because it's only for one mole of substance?

Andrea ORiordan 1L
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Re: Enthalpy of Formation Intensive Property

Postby Andrea ORiordan 1L » Mon Feb 12, 2018 9:27 pm

How Lyndon explained intensive versus extensive was as follows.

Heat capacity is an extensive property because it depends on the amount of substance present. But specific heat capacity and molar heat capacity are extensive because they take into account the amount of substance present, and don't change if more substance or less is present.

Therefore, I think enthalpy of formation would be intensive, given that it takes into account moles, and doesn't change if more moles are present.

Victoria Draper 1G
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Re: Enthalpy of Formation Intensive Property

Postby Victoria Draper 1G » Mon Feb 12, 2018 10:09 pm

Enthalpy is a measure of heat content, so the greater the mass of any substance, the greater the amount of heat that it can hold at any particular temperature and pressure. Therefore, it is an extensive property I think.


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