4A.3


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Hannah_1G
Posts: 100
Joined: Wed Sep 18, 2019 12:22 am

4A.3

Postby Hannah_1G » Wed Jan 29, 2020 11:11 pm

I cannot get the correct answer. I am using the area of a cylinder with .15 m as radius and .2 m as height times the height to get the volume times 2 atm as the pressure.

Alicia Lin 2F
Posts: 83
Joined: Wed Sep 18, 2019 12:17 am

Re: 4A.3

Postby Alicia Lin 2F » Wed Jan 29, 2020 11:13 pm

Pa x m^3 is equal to one Joule. You have to convert the atm to Pascals to make the units equivalent to a Joule. 1 atm=101325 Pascals.

Max Madrzyk Dis 4G
Posts: 102
Joined: Wed Sep 18, 2019 12:21 am

Re: 4A.3

Postby Max Madrzyk Dis 4G » Wed Jan 29, 2020 11:15 pm

work= -Pext x delta V
delta V= -pi x r^2 x d
use delta V and the pressure given in atm multiploied by the conversion to joules to find the amount of work done.


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