O2 is 16 times heavier than H2. If at the same temperature the O2 molecules have average kinetic energy E, then at the same temperature the average kinetic energy of H2 molecules will be
A
E4
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B
4E
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C
E
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D
E16
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Solution
The correct option is CE As the kinetic energy is given by K.E.=32kBT; kB= Boltzmann constant T= Temperature
The kinetic energy per molecule of the gas depends only upon the temperature, therefore kinetic energy will remain the same i.e. E.