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Temperature of 1kg of hydrogen gas is same as that of 1kg of He, if A..gases have same Internal energy B..they have same Vrms C..they have same mean translational K.E given correct option is ‘A’ why not ‘C’ ?

Temperature of 1kg of hydrogen gas is same as that of 1kg of He, if
A..gases have same Internal energy
B..they have same Vrms
C..they have same mean translational K.E 
given correct option is ‘A’ why not ‘C’ ?

Grade:12th pass

1 Answers

Eshan
askIITians Faculty 2095 Points
6 years ago
Dear student,

The answer must be wrong. Option C is also correct since no matter what the mass of molecules is, the mean translational KE is\dfrac{3}{2}kT.

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