The initial volume of a gas cylinder is 750.0 mL.If the pressure of a gas inside the cylinder changes from to ,what is the final volume the gas occupies?

Question

The initial volume of a gas cylinder is 750.0 mL.If the pressure of a gas inside the cylinder changes from  to  ,what is the final volume the gas occupies?

Quizplus · Accepted Answer

We can use the combined gas law to solve for the final volume: 
(P1*V1/T1) = (P2*V2/T2)
Converting temperatures to Kelvin: 
(11 + 273.15) / (25 + 273.15) = (11.8 / V2) / (50 + 273.15)
Simplifying: 
V2 = (11.8 * 750.0 * 323.15) / (11 * 298.15)
V2 = 1.750 L, which is choice C.

The Initial Volume of a Gas Cylinder Is 750