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Extensive Property

Posted: Sun Feb 17, 2019 11:23 pm
Can someone please explain what an extensive property is?

Re: Extensive Property

Posted: Sun Feb 17, 2019 11:32 pm
An extensive property is one which depends on how much of something there is.

An example of an extensive property is heat capacity.

Heat capacity either consists of molar heat capacity times the amount of moles present or specific heat capacity times the amount of grams present per the substance in question.

Because heat capacity depends on the amount of substance that is present, it is an extensive property. On the other hand, specific heat capacities and molar heat capacities are unique to substances. Therefore, in comparison to heat capacity, these are intensive properties dependent on the substance itself rather than how much of it there is.

Re: Extensive Property

Posted: Sun Feb 17, 2019 11:44 pm
Also, is there a correlation between state functions and extensive Properties?

Re: Extensive Property

Posted: Mon Feb 18, 2019 7:39 pm
An extensive property is something where the value changes based on the amount of something. For example, mass changes based on how much of a sample you have. Similarly, heat capacity on it's own changes based on how much of the sample you have. 10 g of a substance may take 10 joules to raise it by 1 degree Celsius but 5 g of the substance may take 5 joules to raise it by 1 degree Celsius.