Combined gas law
Combined Gas Law
The Combined Gas Law can be derived by
multiplying Boyle's law by the
laws of Charles and Gay-Lussac.
P1V1 = P2V2
P1V12 / T1 = P2V22
P12V12 / T12
= P22V22 / T22
By taking the square root of this result we get the combined gas law:
P1V1 / T1 = P2V2
A sample of gas has an initial volume of 2dm3 (V1)
at a temperature of 300 K(T1) and a pressure of 1atm (P1).
If the gas is compressed to a volume of 0.5dm3(V2)and
heated to 350 K(T2) what is the final pressure (P2)?
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