A container contains 2 liters of a gas at pressure of 150mmHg. The container is compressed to 1.5 liters what is the pressure of the gas now in mmHg?

Question

A container contains 2 liters of a gas at pressure of 150mmHg. The container is compressed to 1.5 liters what is the pressure of the gas now in mmHg?

Answer 1

If the temperature of the gas is constant (which was not stated in the question), pressure and volume are inversely proportional, so

 

P₁V₁ = P₂V₂ ⇒

 

P₂ = P₁V₁/V₂ = (150 mm Hg)(2 L)/(1.5 L) = 200 mm Hg