Question

If water is heated at the supercritical pressure (> 221.2 bar) then what happened??

Answer 1

If you heat up the water at super-critical pressure (221.2 bar), then water will directly vaporize (gaseous phase) without taking any time, thus the latent heat of water at pressure above super-critical temperature is 0, unlike at the pressure below super-critical pressure when you heat up water below super critical pressure than water takes time to change completely into vapor form.

Answer 2

If water is heated at the supercritical pressure (> 221.2 bar) it would vapourize immediately.

In normal conditions i.e. normal pressure, if we heat up water from 1C to 100C , it starts to heat up, boil and evaporuate.

However, at supercritical pressures, the water can directly vapourize.