An ideal gas with an initial volume of 96L, temperature of 277K, and 7.3mol is permitted to come to a second state with a volume of 450mL and a temperature of 203C. Show the calculation for the final number of moles of gas in the system.

Question

An ideal gas with an initial volume of 96L, temperature of 277K, and 7.3mol is permitted to come to a second state with a volume of 450mL and a temperature of 203C. Show the calculation for the final number of moles of gas in the system.

(P1)(V1)/(n1)(T1)=(P2)(V2)/(n2)(T2)

(P1)(96L)/(7.3mol)(277K)=(P2)(.45L)/(x)(476K)

Does it matter if you aren't given pressure? Can you just throw a 1 in there or do you need to use PV=nRT to solve? If not, I got 9.478mol. Is that right?

Answer 1

An ideal gas with an initial volume of 96L, temperature of 277K, and 7.3mol is permitted to come to a second state with a volume of 450mL and a temperature of 203C. Show the calculation for the final number of moles of gas in the system.

Assume pressure is constant. It will cancel out of the combined law expression.