Question

Numericals based on Boyle's law
1. Volume of certain amount of a gas at 25°C and
100 cm Hy pressure is 80 ml. The gas is
expanded to 160 ml keeping the temperature
constant. Calculate the pressure of the expanded
​

Answer 1

Answer:

50 cm Hg

Explanation:

Boyle's law states that volume of a gas is inversely proportional to the pressure applied on the gas

V = k/P (k= constant)

Given,

P₁ = 100 cm Hg

V₁ = 80 mL

P₂ = ?

V₂= 160 mL

From Boyle's law equation.

P₁V₁=P₂V₂

=> 100 X 80 = P₂ X 160

=> (100 X 80)/160=P₂

=> 50 cm Hg = P₂

Ans - 50 cm Hg