Answer:
The answer is 3; Zero
Explanation:
It is to remembered that at critical temperature all three phases of liquid are at equilibrium and the surface tension is zero at this temperature.
Using physical means such as electrostatic filters or mechanical filters :)
H = mc∆T
where, H=heat energy
c = SHC
H = 2*921*(40-20)
H = 36840J
H = 36.84KJ
The energy transferred to it is 36.84KJ
You can see yourself in a mirror because light rays<span> bounce off its shiny surface. Light rays come from everything you can see, including yourself. You see things when </span>the light<span>rays from them enter yours eyes. Some of the light rays that come from yourself strike the mirror. The mirror reflects the rays because it is very smooth. The rays come back to your and enter your eyes.</span>
