Question

At a constant pressure of \[ 2\times10^5\ \mathrm{Nm^{-2}}, \] if the volume of \(4\) moles of a monoatomic gas changes from \(1000\) cc to \(1500\) cc, then the change in internal energy of the gas is

• A. \(150\) J
• B. \(250\) J
• C. \(200\) J
• D. \(600\) J

Hint:

For a monoatomic ideal gas, \[ \boxed{\Delta U=\frac32nR\Delta T.} \] At constant pressure, \[ \boxed{nR\Delta T=P\Delta V,} \] so \[ \boxed{\Delta U=\frac32P\Delta V.} \]

Answer 1

The Correct Option is A