qp=deltaH

isochoric/isometric:
isothermal:
isobaric:

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ursulavictorino1K
Posts: 55
Joined: Sun Feb 17, 2019 12:15 am

qp=deltaH

Postby ursulavictorino1K » Sun Feb 09, 2020 10:11 pm

What does it mean for qp=deltaH?

Tracy Tolentino_2E
Posts: 140
Joined: Sat Sep 07, 2019 12:17 am

Re: qp=deltaH

Postby Tracy Tolentino_2E » Sun Feb 09, 2020 10:12 pm

At constant pressure, q (heat) equals delta H (the change in enthalpy).

TarynD_1I
Posts: 100
Joined: Sat Aug 24, 2019 12:17 am

Re: qp=deltaH

Postby TarynD_1I » Sun Feb 09, 2020 10:13 pm

qp is equal to delta h when a system is at constant pressure, so no nonexpansion work is being done.

Brandon Tao 1K
Posts: 100
Joined: Sat Aug 17, 2019 12:15 am

Re: qp=deltaH

Postby Brandon Tao 1K » Sun Feb 09, 2020 10:14 pm

qp I think is the heat in a reaction under constant pressure and delta H is the change in enthalpy. Therefore, in a system, given ideal gasses, the heat is equal to a change in enthalpy.

Sam McNeill 1E
Posts: 110
Joined: Sat Aug 24, 2019 12:17 am

Re: qp=deltaH

Postby Sam McNeill 1E » Mon Feb 10, 2020 4:22 pm

Delta H can be used in the equation U=q+w for q when there is constant pressure, but you still will need to account for w, which is PdeltaV for irreversible expansion.

Samuel Tzeng 1B
Posts: 103
Joined: Sat Aug 24, 2019 12:15 am

Re: qp=deltaH

Postby Samuel Tzeng 1B » Mon Feb 10, 2020 4:41 pm

q = deltaH at constant pressure

nicole-2B
Posts: 103
Joined: Fri Aug 30, 2019 12:18 am

Re: qp=deltaH

Postby nicole-2B » Tue Feb 11, 2020 3:32 pm

TarynD_1I wrote:qp is equal to delta h when a system is at constant pressure, so no nonexpansion work is being done.

Thank you for clarifying!!


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