Question

Why does the density of a gas change with increase in temperature ?

Answer 1

Answer:

there are now more particles per cubic unit of length, the density increases.

Also, when we increase the temperature of the gas molecules, we increase the energy of the molecules.

As such, the Kinetic energy of the Molecules increase, which means the volume increases.

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Answer 2

Answer:

Explanation:

Since there are now more particles per cubic unit of length, the density increases. Also, when we increase the temperature of the gas molecules, we increase the energy of the molecules. As such, the Kinetic energy of the Molecules increase, which means the volume increases. This mean the intermolecular space increases.