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Kinetic theory of gases proves

  • Option 1)

    Only Boyle's law

  • Option 2)

    Only Charles' law

  • Option 3)

    Only Avogadro's law

  • Option 4)

    all of these.

 

Answers (2)

As we learnt in

Kinetic Theory of Gases -

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

 

-

 

 PV=\frac{1}{3}mn\ V_{rms}^{2}=\frac{2}{3}\times \frac{1}{2}mn\ V_{rms}^{2}=\frac{2}{3}kT

(1)    Boyle's Law: At constant temperature average kinetic energy is constant so Vrms remains unchanged. If volume increases pressure of gas decreases.

i.e. PV = constant.

2.    Charle's Law: If we allow the volume to change to maintain constant pressure the volume will increase with increasing temperature.

V = K T

3.    Avogadro's Law: Under similar condition of pressure and temperature, equal volume of all gases contain equal number of molecules.

V\alpha\ n

Correct option is 4.

 


Option 1)

Only Boyle's law

This is an incorrect option.

Option 2)

Only Charles' law

This is an incorrect option.

Option 3)

Only Avogadro's law

This is an incorrect option.

Option 4)

all of these.

This is the correct option.

Posted by

Vakul

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