Important Thermochemistry Equations

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Sophie Roberts 1E
Posts: 61
Joined: Fri Sep 28, 2018 12:17 am

Important Thermochemistry Equations

Postby Sophie Roberts 1E » Mon Feb 04, 2019 5:21 pm

Does someone mind listing all the important equations we need to know for the thermochemistry unit? I get confused when reading the book, which equations are necessary to know and which are just examples...
Thank you!!

Kathryn Wilhem 1I
Posts: 60
Joined: Fri Sep 28, 2018 12:27 am

Re: Important Thermochemistry Equations

Postby Kathryn Wilhem 1I » Mon Feb 04, 2019 7:47 pm

Going off of the equation sheet on the website, we should know:
Ideal gas, Cp = (5/2) R
Ideal gas, Cv = (3/2) R
Ideal gas, U = 3/2 nRT
∆U = q + w
q = n C ∆T
W = - P x ∆V
PV = nRT
w= -nRTln(V2/V1)
Those are all of the Thermochemistry equations that I could find on the sheet.

Rimsha Hussaini 1A
Posts: 31
Joined: Fri Sep 28, 2018 12:20 am

Re: Important Thermochemistry Equations

Postby Rimsha Hussaini 1A » Tue Feb 05, 2019 12:40 pm

All of these equations will be given on a test, midterm, or final on the equation sheet, but it is also good to know how to derive some of these equations by knowing one or two of them.

Ian Marquez 2K
Posts: 66
Joined: Fri Sep 28, 2018 12:16 am
Been upvoted: 2 times

Re: Important Thermochemistry Equations

Postby Ian Marquez 2K » Tue Feb 05, 2019 9:30 pm

Also, it is helpful to know which equations apply for which problems so that your time is used efficiently to understand and set up the problems. Make sure you know the general equations needed to solve different problems (specific heat capacity, internal energy, constant volume/pressure, etc.).

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