Originally Posted by Rocketboy
A gas volume has a volume of 3.0 L at 293.15 K and1.5 atm. what would the volume of the gas be at 2.5 atm and 30 degrees celcius

ala the ideal gas law we have
(P1 V1)/ (T1) = (P2 V2)/(T2)
You have all the information, but you need to convert the 30 Celsius to Kelvin.
(1.5 atm x 3.0 L)/ (293.15) = (2.5 atm x V2 )/(T2)
Dan