delta H and pressure

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Samantha Chung 4I
Posts: 77
Joined: Wed Oct 03, 2018 12:16 am

delta H and pressure

Postby Samantha Chung 4I » Thu Jan 24, 2019 2:09 pm

Why is it important that delta H is measured at a constant pressure?
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Sophia_Kiessling_2L
Posts: 61
Joined: Fri Sep 28, 2018 12:26 am

Re: delta H and pressure

Postby Sophia_Kiessling_2L » Thu Jan 24, 2019 3:06 pm

I believe it's because changing the pressure can possible change the reaction rate.
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IsabelLight2H
Posts: 34
Joined: Wed Oct 03, 2018 12:15 am

Re: delta H and pressure

Postby IsabelLight2H » Fri Jan 25, 2019 12:05 am

If the pressure is not constant, delta H will not be accurate and should be recalculated.
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