8.9 torr conversion

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Paula Dowdell 1F
Posts: 72
Joined: Tue Nov 15, 2016 3:00 am

8.9 torr conversion

Postby Paula Dowdell 1F » Mon Jan 22, 2018 10:00 pm

Hi!
I'm confused on the work calculation in 8.9!

w= -((750 Torr)/(760 Torr x atm^-1)) ((1846mL - 345mL)/(1000mL x L^-1)) = -1.48 L x atm

where did the 760 Torr & the 1000mL come from in the denominators of this work calculation?

Thanks!

Andrea Grigsby 1I
Posts: 60
Joined: Fri Sep 29, 2017 7:03 am

Re: 8.9 torr conversion

Postby Andrea Grigsby 1I » Mon Jan 22, 2018 10:12 pm

torr is another way to express pressure, but thermodynamics answers are usually always in atm so the conversion from torr to atm is on the formula sheet where 1 atm=760 torr!
and for the 1000ml, it's because work is calculated with liters


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