Which one of the following statements is wrong for an isobaric process?

Which of the following graphs between pressure $(P)$ and volume $(V)$ correctly shows isochoric changes?

In an isobaric expansion of an ideal gas,which of the following is zero?

In a reversible isochoric change,

Write a note on the isochoric process.

The temperature of $3.00 \, mol$ of an ideal diatomic gas is increased by $40.0^{\circ} C$ without changing the pressure of the gas. The molecules in the gas rotate but do not oscillate. If the ratio of change in internal energy of the gas to the amount of work done by the gas is $\frac{x}{10}$,then the value of $x$ (round off to the nearest integer) is ..... . (Given $R = 8.31 \, J \, mol^{-1} K^{-1}$)