Internal energy is an example of

Calculate the work done in the following reaction at $300 \ K$ and at constant pressure. $(R = 8.314 \ J \ K^{-1} \ mol^{-1})$ $4 \ HCl_{(g)} + O_{2_{(g)}} \rightarrow 2 \ Cl_{2_{(g)}} + 2 \ H_2O_{(g)}$ (in $J$)

Point out the wrong statement in relation to enthalpy.

The heat content of a system is called

Which among the following is $NOT$ an intensive property?

If a chemical reaction is accompanied by the evolution of heat,it is