Question

A piston has a pressure of 0.87 atm and a volume of 42 mL of gas. When more

pressure is applied, the volume of the gas decreases to 12 mL. Calculate the pressure,
in atmospheres, applied to the piston.
(Boyle's Law: Temperature is kept constant.)

Answer 1

Answer: 3.045 atm

Explanation: P1V1=P2V2

P1= first pressure

V1= first volume

P2= second pressure

V2= second volume

1) 0.87*42 = P2*12

2) 36.54 = P2*12

3) 36.54/12= P2

4) P2= 3.045