Question

A gas that has a volume of 21 liters , a temperature of 27 C and an unknown pressure has its volume increased to 28 litersandits temperature increased to 1227 C. If I measure the pressure after the change to be 2 atm, what was the orignal pressure of the gas?

Answer 1

Use the formula:
\[\frac{ P _{1}V _{1} }{ T _{1} }=\frac{ P _{2}V _{2} }{ T _{2} }\]