The quantity of heat required to convert one mole of liquid into its vapours at its boiling point is called molar heat of__________________?

A. vaporization
B. evaporation
C. crystallization
D. sublimation

Related Mcqs:

The amount of heat absorbed when one mole of a liquid is changed into gas at its boiling point is_____________________?
A. Molar heat of sublimation
B. Molar heat of fusion
C. Molar heat of vapourization
D. Latent heat of that liquid
If we provide very high amount of heat to a liquid its boiling point will__________________?
A. increase
B. remains constant
C. decrease
D. there will be no boiling
Formation of vapours from the surface of a liquid is called________________?
A. vapourization
B. evaporation
C. condensation
D. cracking
The conversion of vapours back into their liquid state is called__________________?
A. crystallization
B. evaporization
C. vaporization
D. condensation
The process in which solid changes directly into vapours without passing through liquid state?
A. Decantation
B. Sublimation
C. Evaporation
D. None

Submitted by: Naintara Mustafa
A compound is determined to have an emperical formula of C2H6O and a molar mass of 138 g/mole. What is the molecular formula?
A. C2H6O
B. C6H18O3
C. C6H12O6
D. C2H5O

Submitted by: Muhammad Ali Kunbhar
A substance is analyzed and found to have an emperical formula of CH2 and a molar mass of 56g/mole. What is the molecular formula of the compound?
A. C2H4
B. C3H6
C. C4H8
D. C5H10

Submitted by: Muhammad Ali Kunbhar
The molal boiling point constant is the ration of the elevation of boiling point to____________________?
A. Molarity
B. Molality
C. More fraction of solvent
D. Mole fraction of solute
0.5 mole of nitrogen gas and 0.5 mole of carbon monoxide gas at STP have same_____________?
A. Value of a
B. Mass
C. Atoms
D. Both B and C
Direct conversion of solids into vapours is called ___________________?
A. Solvent extraction
B. sublimation
C. crystallization
D. vaporization