Point out the wrong statement in relation to enthalpy.

The number of extensive properties in the following list is: enthalpy,density,volume,internal energy,temperature.

Fill in the blanks:
$(i)$ The process of attaining thermal equilibrium between any two heat-conducting bodies is called the $\dots\dots$ law of thermodynamics.
$(ii)$ The law of thermodynamics is actually the law of $\dots\dots$.
$(iii)$ $A$ thermometer measures temperature according to the $\dots\dots$ law of thermodynamics.

For the reaction,$A_{(s)} + 3B_{(g)} \to 4C_{(s)} + D_{(l)}$,$\Delta H$ and $\Delta U$ are related as $\dots$

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

Which of the following processes is endothermic?