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Q.


The ratio of translational kinetic energies at Question Image The temperature is 3: 2. Then the internal energy of one mole gas at that temperature is Question Image.


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a

Question Image

b

Question Image

c

Question Image

d

Question Image 

answer is C.

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Detailed Solution

Concept- Determine the degrees of freedom from the supplied kinetic energy ratio and then apply them in the total energy formula. The internal energy of one mole gas can then be calculated.
Formula Used:
Question ImageQuestion ImageFrom the ratio:
Question ImageThe translational degree of freedom is three. As a result of the ratio, the rotational degree of freedom will be two.
Now consider the following formula for total internal energy:
Question ImageQuestion ImageHence, the correct answer is option 3.
 
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