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Questions  

The internal energy of  gases He, O2 and NH3 are plotted against the absolute temperature.  The respective graphs 1, 2  and 3 are of 

a
He, O2 and NH3
b
NH3, H2 and O2
c
NH3, O2 and He
d
O2, He and NH3

detailed solution

Correct option is A

The internal energy  U=f2RT and fNH3>fO2>fHe where f is degrees of freedom

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Similar Questions

100 mol of an ideal gas is heated from 10° to 20°C keeping its (i) volume constant (ii) pressure constant.
Let ΔUa and ΔUb denote the change in the internal energy of the gas due to process (i) and (ii),
respectively. Then, which of the following shall be true?


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