Question

A gas has a pressure of 2.93 atm when its
volume is 3.99 L. What will the pressure
be when the volume is changed to 1.56 L,
assuming constant temperature? Express the
final pressure in torr.
Answer in units of torr

Answer 1

P1V1 = P2V2. If you eneter P1 in atm then P2 will be in atm and you will need to convert to torr. Or you can convert 2.93 atm to torr (1 atm = 760 torr) initially and the final P will be in torr.