State Properties and q vs H

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Payton Kammerer 2B
Posts: 49
Joined: Tue May 01, 2018 3:00 am

State Properties and q vs H

Postby Payton Kammerer 2B » Thu Jan 23, 2020 12:32 pm

From my understanding of the lecture yesterday, delta H and q are equal to one another in an open vessel, so why is delta H a state property but q isn't? Shouldn't the heat also not depend on the path that was taken to get to that heat? If it is 50 degrees outside, it is 50 regardless of yesterday's temperature. Perhaps I am misunderstanding what is meant by "heat"?

Shivam Rana 1D
Posts: 106
Joined: Fri Aug 09, 2019 12:16 am

Re: State Properties and q vs H

Postby Shivam Rana 1D » Thu Jan 23, 2020 12:40 pm

Delta H and q measure two different things even though they may be related. Q measures work while dH measures enthalpy which only depends on initial and final conditions.

Bella Townsend
Posts: 50
Joined: Wed Feb 20, 2019 12:18 am

Re: State Properties and q vs H

Postby Bella Townsend » Fri Jan 24, 2020 8:29 pm

there are multiple ways to calculate enthalpy, but only one way to calculate heat

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