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Knowing which work function to use

Posted: Sun Jan 27, 2019 8:02 pm
by skyeblee2F
How do we know when to use the work function with -P or -nRT?

Re: Knowing which work function to use

Posted: Sun Jan 27, 2019 9:43 pm
by aisteles1G
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!