Select the correct statement(s)

Moderate

A

The standard boiling temperature is the temperature at which the vapour pressure of the substance is 1 bar
B

The normal boiling temperature is the temperature at which the vapour pressure of the substance is 1 atm
C

Substances for which T > T_c and P > P_care called super critical fluids
D

All the above are correct statements

Solution

At the normal boiling point of any liquid, the vapor pressure is equal to the standard atmospheric pressure defined as 1 atmosphere, 760 Torr.,Etc

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