Question

2 kg of air is filled in a container. Its pressure is 10âµ Pa. On adding another 2 kg of air in the container at constant temperature, its pressure becomes ............ (A) 10âµ Pa (B) 0.5 Ã 10âµ Pa (C) 2 Ã 10âµ Pa (D) 10â· Pa

Answer 1

Answer:

c will be the answer.........

Answer 2

Answer:

Option (C) is correct.

Explanation:

Since we know the ideal gas equation

$PV =\frac{Given\ mass}{Molar\ mass}RT$

So, container had the fixed volume,and it is given that the temperature is constant.

Initial given mass of gas is 2 kg.So, pressure is 10 Pa.

In final case another 2 kg of gas is added so, total mass becomes 4 kg.

Pressure is directly proportional to the mass of the gas, so pressure also becoems double so option (C) is correct.