devarshi-dt-logo

Question:

The pressure and temperature of 4 dm³ of carbon dioxide gas are doubled. Then the volume of carbon dioxide would be:

2 dm³

4 dm³

8 dm³

3 dm³

Solution:

The combined gas law or general gas equation is obtained by combining Boyle's Law, Charles' Law, and Gay-Lussac's Law. It shows the relationship between the pressure, volume, and temperature for a fixed mass (quantity) of gas.
∵p₁V₁/T₁ = p₂V₂/T₂
p₁×4/T₁ = 2p₁×V₂/2T₁
2V₂ = 8
V₂ = 4 dm³
Option C is correct.