The heat content of a system is called

Find the work done on $2 \ mol$ of an ideal gas at $27^{\circ} C$ if it is compressed reversibly and isothermally from $5.05 \times 10^6 \ Nm^{-2}$ to $1.01 \times 10^5 \ Nm^{-2}$ pressure. (in $kJ$)

Two moles of an ideal gas expand spontaneously into a vacuum. The work done is ............. $Joule$.

Consider the reversible isothermal expansion of an ideal gas in a closed system at two different temperatures $T_1$ and $T_2$ $(T_1 < T_2)$. The correct graphical depiction of the dependence of work done $(|w|)$ on the final volume $(ln V)$ is:

Which amongst the following options is the correct relation between change in enthalpy and change in internal energy?

If a system neither gains nor loses heat during its transformation from one state to another,such a process is called ......