In architectural drawings, what do architects use to convey exact details about various parts of a drawing without leaving any scope for misinterpretation? Architects use

marks to identify the exact parts of a building without leaving any scope for misinterpretation

Water vapor initially at 10 bar and 400 °c is contained within a piston-cylinder assembly. the water lost heat to the surrounding according to isochoric (iso-volumetric) process until its temperature is 150 °c. the water is then condensed isothermally to saturated liquid. for the water as a system, calculate the work in kj/kg