Why can’t the density be assumed as constant for compressible fluids?
(a) It shows variation with temperature and pressure
(b) It remains constant with temperature and pressure
(c) It becomes almost constant at very high temperature
(d) None of the mentioned
I got this question in an interview.
I'm obligated to ask this question of Pressure at a Point in Compressible Fluid topic in portion Pressure and Its Measurement of Fluid Mechanics