Question

A certain sample of gas has a volume of 0.2 L at one atmosphere pressure and 273.15 K. What is the volume of gas at 273.15°C at same pressure?

Options

• 5.406 L

• 2.703 L

• 0.4 L

• 0.2 L

Answer 1

0.4 L

Explanation:

V₁ = 0.2 L

V₂ = ?

T₁ = 237.15 K

T₂ = 273.15 + 273.15 = 546.30 K

∴ According to Charle's law,

`"V"_1/"T"_1 = "V"_2/"T"_2` ......(at constant P and n)

∴ V₂ = `("V"_1 xx "T"_2)/"T"_1`

= `(0.2 xx 546.30)/273.15`

= 0.4 L