Which of the following thermodynamic properties is a path function?

An ideal gas expands by $1.5 \ L$ against a constant external pressure of $2 \ atm$ at $298 \ K$. Calculate the work done (in $J$)?

One mole of a non-ideal gas undergoes a change of state ($2.0 \, atm$,$3.0 \, L$,$95 \, K$) $\rightarrow$ ($4.0 \, atm$,$5.0 \, L$,$245 \, K$) with a change in internal energy,$\Delta U = 30.0 \, L \, atm$. The change in enthalpy $\Delta H$ of the process in $L \, atm$ is.

Identify the correct statements from the following.
$(I)$ For adiabatic process,$\Delta U = W_{\text{adiabatic}}$
$(II)$ Work is a path function.
$(III)$ Volume is an extensive property.

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 $kJ$)

For which one of the following reactions,$\Delta H$ is not equal to $\Delta E$?