Question

A gas occupies a volume of 400cm cube at o degree celsius and 700 mm hg. How many liters of volume will the gas occupy at 80 degree celsius and 700 mm hg? 1 cubic centimeter=0.001 liters?

Answer 1

Answer:

Given: P

1

=745 mm Hg

V

1

=250 ml

V

2

=200 ml

∴ By Boyle's law as the temperature is constant.

P

2

=

V

2

P

1

V

1

=

200

745×250

=931.25 mm Hg

Additional pressure required =931.25−745=186.25 mm