Question

A sample of gas has an intial volume of 22.8 L at a pressure of 1.65 atm. If the sample is compressed to a volume of 10.7 L, what is its pressure? (Assume constant temperature.)

Answer 1

The pressure of the gas is 3.52 atm

calculation

This is calculated using the Boyle's law formula

that is P1V1= P2V2 where;

P1 = 1.65 atm

V1 =22.8 L

P2 =? atm

V2 = 10.7 L

make P2 the subject of the formula by dividing both side by V2

P2 = P1V1 / V2

P2 = (1.65 atm x 22.8 l) / 10.7 L = 3.52 atm