The temperature at which vapour pressure of liquid becomes equal to atmospheric
or external pressure called ……….
a) freezing point
b) enthalpy
c) boiling point
d) sublimation point
During boiling, the temperature of the liquid
a) increases
b) decreases
c) remains constant
d) none of these
Explanation:During the boiling of water the temperature stays constant while heat is supplied continuously. It is because the heat provided by the water particles is consumed, and this heat increases their kinetic energy.
Boiling point depends upon ………….
a) nature of liquid
b) intermolecular forces
c) external pressure
d) all of these
Boiling point is……to intermolecular forces.
a) directly proportional
b) inversely proportional
c) has no relation
d) none of these
Polar liquids have …………. boiling points.
a) high
b) low
c) very low
d) same
Water has …………..boiling point.
a) 100oC
b) 87.9oC
c) 24.5oC
d) 78.3OC
