Question

At a constant pressure, the density of a certain amount of an ideal gas is ____________.

Options

• directly proportional to the temperature

• inversely proportional to the temperature

• directly proportional to the square of the temperature

• independent of a temperature

Answer 1

At a constant pressure, the density of a certain amount of an ideal gas is inversely proportional to the temperature.

Explanation:

The density of an ideal gas is given as

d = `"PM"/"RT"`

∴ `"d" ∝ 1/"T"` ......(∵ P, M, R = constant)