One kilogram of water (v = 1003 cm kg-1) in a piston/cylinder device at 25°c and 1 bar is compressed in a mechanically reversible, isothermal process to 1500 bar. determine q. w. au, ah, and as given that f = 250 x 10-6 k and x = 45 x 10-bar-. a satisfactory assumption is that is constant at its arithmetic average value.