Question

A sample of chlorine gas occupies a volume of 946mL at a pressure 726mmHg. Calculate the pressure of the gas if the volume is reduced to a quarter at constant temperature

Answer 1

find the formula:

$P1V1=P2V2$ at constant temperature

$P2=\frac{P1V1}{V2}$

$V2=\frac{V1}{4}=\frac{946}{4}=236.5$

$P2=\frac{\frac{726}{760}\times 946}{236.5}=3.82$ atm