Knowing which work function to use

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skyeblee2F
Posts: 62
Joined: Fri Sep 28, 2018 12:23 am

Knowing which work function to use

Postby skyeblee2F » Sun Jan 27, 2019 8:02 pm

How do we know when to use the work function with -P or -nRT?

aisteles1G
Posts: 117
Joined: Fri Sep 28, 2018 12:15 am

Re: Knowing which work function to use

Postby aisteles1G » Sun Jan 27, 2019 9:43 pm

The -nRT is for reversible reactions, so if the problem states that the reaction is irreversible or reversible you should know which one to use based off that. Another good thing if youre stuck is to just look at what is given (moles or atm) to see which one you should use but be careful in going about it in this way because one of the homework problems gave you pressure but wanted you to convert to moles using the ideal gas law in order to use the -nRT equation since it was a reversible reaction. Hope this helps!


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