Question

A gas at 55.0°C occupies a volume of 3.60 L. What volume will it occupy at 30.0°C?

Answer 1

`"3.33 L"`

Explanation:

For an ideal gas

`"V ∝ T"`

`"V"_2/"V"_1 = "T"_2/"T"_1`

• `"V"_1 = "3.60 L"`
• `"V"_2 = ?`
• `"T"_1 = "55.0°C" = "(55.0 + 273)K" = "328 K"`
• `"T"_2 = "30.0°C" = "(30.0 + 273)K" = "303 K"`

`"V"_2 = "V"_1 × "T"_2/"T"_1 = "3.60 L" × (303 cancel"K")/(328 cancel"K") = "3.33 L"`