JEE Mains · Physics · STD 11 - 12 . kinetic theory of gases
\(7\) mole of certain monoatomic ideal gas undergoes a temperature increase of \(40 K\) at constant pressure. The increase in the internal energy of the gas in this process is\(....J\) (Given \(R =8.3 JK ^{-1} mol ^{-1}\) )
- A \(5810\)
- B \(3486\)
- C \(11620\)
- D \(6972\)
Answer & Solution
Correct Answer
(B) \(3486\)
Step-by-step Solution
Detailed explanation
For a quasi-static process the change in internal energy of an ideal gas is \(\Delta U = nC _{ V } \Delta T\) \(= n \times \frac{3 R }{2} \times \Delta T\) [molar heat capacity at constant volume for mono atomic gas \(=\frac{3 R}{2}\) ]…
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