Question

A gas is under a pressure of 760torr and occupies volume of 525cm3. If the pressure is doubled, what volume would gas now occupy? Assume the temperature is constant?

Answer 1

262. 5cm3.

using the Boyles law formula. p1v1=p2v2

P1=760torr.

v1=525cm³

p2=760×2=1520torr.

v2=?

p1v1=p2v2

760×525=1520×v2

v2=[ 760×525]÷1520

v2= 262.5cm³

when the pressure increases, the volume decreases.