As the temperature is raised from 20°C to 40°C, the average kinetic energy of neon atoms changes by a factor of which of the following?

  • Option 1)

    1/2

  • Option 2)

    \sqrt{313/293 }

  • Option 3)

    313/293

  • Option 4)

    2

 

Answers (2)

As we learnt in

Kinetic Theory of Gases -

Average kinetic energy of the gas molecules is directly proportional to the absolute temperature.

 

-

 

 

K.E.= \frac{3}{2}RT

= \frac{K_{40}}{K_{20}}= \frac{T_{40}}{T_{20}}= \frac{273 +40}{273 +20}= \frac{313}{293}

Correct option is 3.


Option 1)

1/2

This is an incorrect option.

Option 2)

\sqrt{313/293 }

This is an incorrect option.

Option 3)

313/293

This is the correct option.

Option 4)

2

This is an incorrect option.

N neha

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