Practice Midterm #3b Equation

Volume:
Temperature:

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Alexia Joseph 2B
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Joined: Thu Jul 27, 2017 3:01 am

Practice Midterm #3b Equation

Postby Alexia Joseph 2B » Wed Feb 14, 2018 12:45 am

What equation do you use to find the final pressure after knowing the total volume is 11.0L in #3 of the practice midterm (where delta S was 33.0 J/K)?

Alvin Tran 2E
Posts: 39
Joined: Fri Sep 29, 2017 7:06 am

Re: Practice Midterm #3b Equation

Postby Alvin Tran 2E » Wed Feb 14, 2018 2:06 am

PV = nRT

Hammad Khan 2B
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Re: Practice Midterm #3b Equation

Postby Hammad Khan 2B » Wed Feb 14, 2018 3:33 pm

How would you use the equation to solve for pressure?

Alvin Tran 2E
Posts: 39
Joined: Fri Sep 29, 2017 7:06 am

Re: Practice Midterm #3b Equation

Postby Alvin Tran 2E » Wed Feb 14, 2018 4:13 pm

V = 11 L is given. n equals the sum of the He and Kr moles. It should be around 3.74 moles. R is the gas constant. T is the final temperature in K which is 75.0 + 273.15 = 348.15 K. Plug in and solve for P.


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