How to find work done by reaction.


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Jake1K
Posts: 51
Joined: Mon Jan 09, 2023 8:39 am

How to find work done by reaction.

Postby Jake1K » Fri Feb 03, 2023 9:49 am

2NaN3(s)⟶2Na(s)+3N2(g)
Given this equaiton, how would you be able to tell how much work the reaction does on its surroundings if there are 23.8g of reactant?

Bridget Vause 1A
Posts: 35
Joined: Mon Jan 09, 2023 2:19 am

Re: How to find work done by reaction.

Postby Bridget Vause 1A » Fri Feb 03, 2023 1:13 pm

Hi!

The equation for work is . We know the ideal gas formula, PV=nRT and if you convert grams to moles, you can get n. Then, you can solve for PV with nR(R=8.31J/mol*k)T(assuming T is given? if not I believe its 298K?). Then, make that negative and you have the work!

Hope this helps! :)


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