Question

if water is heated at the supercritical pressure (> 221.2 bar)
(a) there will be no flashing of liquid to vapour
(b) the saturation temperature is always 374.15°C
(c) it will always remain in liquid phase
(d) there will be no bubble formation

Answer 1

As you approach the critical point the vapor phase becomes more and more dense.

At critical temperature the density of the vapour becomes same as the density of the liquid phase.

Below the critical temperature and above the critical pressure, the liquid remains liquid.

The answer is thus :

It always remain in liquid phase.