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CBSE Class 11-science Answered

Using the law of equipartition of energy, calculate the total energy of one mole of monoatomic, diatomic and triatomic gases?
Asked by Topperlearning User | 11 May, 2015, 14:26: PM
answered-by-expert Expert Answer

According to the law of equipartition of energy, the energy is equally distributed among all the degrees of freedom and that is equal to 1/2 kT. Therefore, if the degrees of freedom of gas molecules are f then internal energy of 1 mole of gas will be

, where N is the Avogadro number.

Atomicity

Degrees of freedom

U

Monoatomic gas

3

  begin mathsize 12px style 3 over 2 kT end style

Diatomic gas

5

  begin mathsize 12px style 5 over 2 kT end style

Angular triatomic gas

6

  begin mathsize 12px style 6 over 2 kT end style

Linear triatomic gas

7

  begin mathsize 12px style 7 over 2 kT end style

 

Answered by | 11 May, 2015, 16:26: PM

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