Question

The volume of a gas
with some marble is 250 ml at pressure of 640 torr. The volume becomes 3oo ml at 900 mm Hg pressure. Calculate the volume occupied by the marbel​

Answer 1

Explanation:

Let volume of marbles = V ml

∴ volume of gas at 760 mm pressure is (100 - V) and that at 1000 mm pressure is (80 - V) ml.

From Boyle's law,

P

1

V

1

=

P

2

V

2

or,

760

×

(

100

−

V

)

1000

×

(

80

−

V

)

or, V = 16.6 ml

∴ Volume of marble pieces is 16.6 ml.