Does the number of degrees of freedom of a gas molecule change with rise in temperature?

The figure show a $\mathrm{P}.\mathrm{V}$ graph of a gas. Calculate the work done.

The figure show a $\mathrm{P}.\mathrm{V}$ graph of a gas. Calculate the work done.

The figure show a $\mathrm{P}.\mathrm{V}$ graph of a gas. Calculate the work done.

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The figure show a $\mathrm{PV}$ graph of a gas. Calculate the work done.

The adjoining diagram shows the pressure-volume graph of thermodynamic processes of an ideal gas. Determine the work done in $\mathrm{A}\to \mathrm{B}, \mathrm{B}\to \mathrm{C} \mathrm{and} \mathrm{C}\to \mathrm{A}$ processes separately and the work done in the complete cycle $\mathrm{ABCA}.$

In the adjoining diagram are shown the changes taking place in a thermodynamic system in going from the initial state $\mathrm{A}$ to the states $\mathrm{B}$ and $\mathrm{C}$ and finally returning to the state $\mathrm{A}.$ If ${\mathrm{U}}_{\mathrm{A}}=30$ joule, ${\mathrm{U}}_{\mathrm{C}}=70$ joule and the heat spent in the change from state $\mathrm{A}$to $\mathrm{B}$ is $60$ joule, then determine work done by the system in the change from $\mathrm{B}$to $\mathrm{C}$.

In the adjoining diagram are shown the changes taking place in a thermodynamic system in going from the initial state $\mathrm{A}$ to the states $\mathrm{B}$ and $\mathrm{C}$ and finally returning to the state $\mathrm{A}.$ If ${\mathrm{U}}_{\mathrm{A}}=30$joule, ${\mathrm{U}}_{\mathrm{C}}=70$joule, and the heat spent in the change from state $\mathrm{A}$ to $\mathrm{B}$ is $60$ joule, then determine heat released from the system in the change from $\mathrm{C}$ to $\mathrm{A}$.