The temperature at which water vapourises into steam is called-
Heat of vaporization:
When water is heated to a temperature X, it gets converted into steam at temperature X by a process called R. And when steam at temperature X is cooled, it reconverted into the water at the same temperature X by a process called S.
(a) How much is the value of X in Kelvin?
(b) What is the process R called?
(c) What is the name of the energy absorbed during the process R?
(d) What is process S known as?
(e) What is the name of energy released during the process S known as?
Explain why organic liquid vapourises at a temperature below its boiling point in its steam distillation.
if temperature is constant during vapourisation then how does steam cause better burns in comparison of water at 100 c.
When water is boiled
to 100∘ C, it converts into steam which on condensation gives back
water. Here, the heat given out is called latent heat of condensation which is equal to the latent heat of vapourisation.