Question
Question: A cylinder contains 10 kg of gas at pressure of 10<sup>7</sup> N/m<sup>2</sup>. The quantity of gas ...
A cylinder contains 10 kg of gas at pressure of 107 N/m2. The quantity of gas taken out of the cylinder, if final pressure is 2.5 × 106 N/m2, will be (Temperature of gas is constant) –
A
15.2 kg
B
3.7 kg
C
zero
D
7.5 kg
Answer
7.5 kg
Explanation
Solution
PV = nRT Ž P µ m,
Q V, M and T = const.
m2 = 2.5 kg = 10– 2.5 = 7.5 kg