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Mathematics Clinic => Grade 9 Mathematics => Topic started by: mydiamond on Oct 4, 2013

Title: How do you solve for V1 in a Combined Gas Law problem?
Post by: mydiamond on Oct 4, 2013

Hello!
I was just wondering what the formula would be to solve for V1 when working on a Combined Gas Law problem. If somebody could help me, that would be great!
Thank you!

Title: How do you solve for V1 in a Combined Gas Law problem?
Post by: hummingbird on Oct 4, 2013

P1V1 / T1 = P2V2 / T2

rearranging...
V1 = V2 x (P2 / P1) x (T1 / T2)

Title: How do you solve for V1 in a Combined Gas Law problem?
Post by: erika on Oct 4, 2013

Depending on what you DO KNOW you set it up like so
P1V1=P2V2
for V1=P2V2/P1
for temp its
V1/T1=V2/T2
V1=V2T1/T2