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Hot and Cold

The average k...

Question

The average kinetic energy of hydrogen molecules at $300 K$ is $E$ . At the same temperature, the average kinetic energy of oxygen molecules will be

A

E / 16

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B

4 E

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C

E / 4

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D

E

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Solution

The correct option is D $E$
As we know, average kinetic energy,
$E = \frac{3}{2} K T$
$∵ E \propto T$
Since the temperature is same, so average kinetic energy of hydrogen molecule and oxygen molecule will be same.

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