Click the correct answer (True or False).
Click the correct answer.
Which of the following processes describes the conversion of ice into water?
freezing
vaporisation
melting
evaporation
What type of expansion takes place in solids?
Linear expansion
Superficial expansion
Cubical expansion
Linear, superficial and cubical expansion
At which temperature water shows maximum density?
0 °C
4 °C
between 0 °C and 4 °C
above 4 °C
What is the SI unit of heat?
joule
calorie
kelvin
kilocalorie
Which of the following produces a cooling effect?
Evaporation
Condensation
Fusion
Deposition
Which of the following does/do not affect the rate of evaporation?
Area of the exposed surface
Nature of the liquid
Presence of moisture
Volume of the liquid
Click the correct answer.
The amount of heat required to raise the temperature of 1 g of water by 1 °C is known as
.
latent heat
heat capacity
one calorie
one joule
The process due to which an ice cube melts into water is known as
.
sublimation
evaporation
fusion
freezing
A naphthalene ball changes from solid state to its gaseous state during the process of
.
evaporation
condensation
combustion
sublimation
When a substance is cooled, the kinetic energy of its molecules
.
increases
decreases
remains unaffected
expand
