First slide

Kinetic theory of ideal gases

Question

At what temperature, the mean kinetic energy of O₂ will be the same for $H_{2}$ molecules at – 73°C

Moderate

A

127°C
B

527°C
C

– 73°C
D

– 173°C

Solution

Mean kinetic energy of molecule depends upon temperature and nature of molecule. $H_{2} a n d O_{2} b o t h a r e d i a t o m i c .$ Therefore for O₂ the mean kinetic energy is same as that of H₂ at the same temperature of -73°C.

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