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Consider a Mixture of Oxygen and Hydrogen Kept at Room Temperature. as Compared to a Hydrogen Molecule an Oxygen Molecule Hits the Wall - Physics

MCQ

Consider a mixture of oxygen and hydrogen kept at room temperature. As compared to a hydrogen molecule an oxygen molecule hits the wall

Options

  • with greater average speed

  • with smaller average speed

  • with greater average kinetic energy 

  • with smaller average kinetic energy 

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Solution

with smaller average speed

The average speed of molecules is given by \[\sqrt{\frac{8kT}{\pi m}}\] .

We observe that greater the mass, lesser is the average speed of the molecule. Since an oxygen molecule is heavier than a hydrogen molecule, the oxygen molecule will hit the wall with smaller average speed.

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APPEARS IN

HC Verma Class 11, Class 12 Concepts of Physics Vol. 2
Chapter 2 Kinetic Theory of Gases
MCQ | Q 2 | Page 34
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