One kg of a diatomic gas is at a pressure of 8 × 10 4 N/m 2 . The density of the gas is 4 kg/m 3 . What is the energy of the gas due to its thermal motion ?
Text Solution
Verified by ExpertsThe correct answer is:
B
E = 
RTn .
Since gas is diatomic hence f = 5
E = 
RTn ( 
PV = nRT)
E = 
PV
E = 
E = 
× 
= 5 × 10 4 J.
So option (2 ) is correct.
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