Assuming temperature remains constant, what happens to the density of a gas as the gas is compressed into a smaller volume?
A)The density of the gas decreases along with the decreasing volume.
B)The density of the gas increases along with the decreasing volume.
C)The density of the gas stays the same because it is an intrinsic property of a material.
D)The density increases because of an increase in mass.

Question

Quizplus · Accepted Answer

As the gas is compressed into a smaller volume, the same amount of gas is being squeezed into a smaller space. This means that the gas particles are closer together, resulting in an increase in the number of particles per unit volume, thus increasing the density of the gas. The temperature remaining constant ensures that the particles have the same average kinetic energy, but the compression increases the number of particles per unit volume, leading to an increase in density.

Assuming Temperature Remains Constant, What Happens to the Density of a Gas