Question

A cylinder contains 4.0 g of nitrogen gas. A piston compresses the gas to half its initial volume. Afterward, by what factor has the mass density of the gas increased?

Answer 1

Answer:

The mass density will be doubled

Explanation:

• Density is given by dividing the mass of a substance by its volume.
• An increase in mass causes an increase in density and vice versa, while a  decrease in volume causes an increase in density and volume.
• Therefore, when the volume is halved, then the density will be doubled if the mass is kept constant.
• This has no effect on the number of moles as the mass is constant.