General Chem Question - TopScore

[pre-dentalguy]

Can you guys give me a hand with this one? Topscore gives the answer as D


What is the final Pressure of a gas that expands from 2.0L at 10 degrees C to 20 L at 100 degrees, if its pressure was initally 6.0 atm?

a. 0.40 atm
b. 0.69 atm
c. 0.72 atm
d. 0.79 atm
e. 0.87 atm


Marion

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[Decan]

(P1V1)/T1=(P2V2)/T2 where T = Kelvin temp

Solve for P2

 

[pre-dentalguy]

(P1V1)/T1=(P2V2)/T2 where T = Kelvin temp

Solve for P2

I did that and this crap still didnt work out.

Marion

 

[taylormade]

1. Use P1V1/T1 = P2V2/T2
2. rearrange to: T2P1V1/T1V2=P2
3. convert oC to K
4. plug and chug..

=0.79 Choice D

 

[pre-dentalguy]

1. Use P1V1/T1 = P2V2/T2
2. rearrange to: T2P1V1/T1V2=P2
3. convert oC to K
4. plug and chug..

=0.79 Choice D

got it... thx