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Questions  

At what temperature, the mean kinetic energy of  O2 will be the same for H2  molecules at – 73°C

a
127°C
b
527°C
c
– 73°C
d
– 173°C

detailed solution

Correct option is C

Mean kinetic energy of molecule depends upon temperature and nature of molecule. H2 and O2 both are diatomic . Therefore for O2 the mean kinetic energy  is same as that of  H2 at the same temperature of  -73°C.

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