A flask contains hydrogen and oxygen in the ratio of 2 : 1 by mass at temperature 2 7 ∘ C . The ratio of average kinetic energy per molecule of hydrogen and oxygen respectively is :

Average kinetic energy for diatomic gases K av = 2 5 kT ∴ ( K av ) O ( K av ) H = ( 27 + 273 ) ( 27 + 273 ) = 1

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PhysicsHeat & ThermoKTGEasy2 minPYQ_2023

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A flask contains hydrogen and oxygen in the ratio of $2 : 1$ by mass at temperature $2 7^{\circ} C$ . The ratio of average kinetic energy per molecule of hydrogen and oxygen respectively is :

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Solution:

Average kinetic energy for diatomic gases
$K_{av} = \frac{5}{2} kT ∴ \frac{( K _{av} ) _{H}}{( K _{av} ) _{O}} = \frac{( 27 + 273 )}{( 27 + 273 )} = 1$

Stream:BITSATSubject:PhysicsTopic:Heat & ThermoSubtopic:KTG

⏱ 2mℹ️ Source: PYQ_2023

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