Question

A cylinder contained 10 kg of gas at pressure 10^7 N/m². The quantity of gas taken out of cylinder
if final pressure is 2.5 x 10^6 N/m is (assume the temperature of gas is constant)​

Answer 1

Answer:

At constant temperature for the given volume of gas P1/P2 = m1/M2 .

10^7/2.5*10^6=10/m2

so m2=2.5*10^6*10/10^7

=2.5 kg

so the amount of gas left in the cylinder=(10-2.5)kg

= 7.5kg

Answer 2

7.5 kg is the right answer