The different molecules that make up the air in a room have, on average the same kinetic energy. How does the speed of the different molecules that make up the air depend on their masses?

Question

Physics

Luca Bentley

29 December, 07:49

The different molecules that make up the air in a room have, on average the same kinetic energy. How does the speed of the different molecules that make up the air depend on their masses?

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Answers (1)

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Phoenix Foley · Answer 1

speed of molecule ∝ 1/mass of molecule.

Explanation:

The velocities of the molecules depend on their masses. That's because if the molecules are large in size, their velocity is slower. Therefore their velocity is quicker when their size is small, since the molecules can move faster.

Therefore, it can be written as

speed of molecule ∝ 1/mass of molecule.