Worksheets4.3 Specific Latent Heat
Total questions: 14
Worksheet time: 7mins
Heat is absorbed during melting and boiling without change of temperature is known as
specific latent heat
latent heat
specific heat capacity
Latent heat is released without temperature change during
melting and boiling
condensation and freezing
melting and condensation
boiling and freezing
Which molecules arrangement shows the stronger molecular bonds?
What is the symbol for specific latent heat?
Q
m
c
l
Specific latent heat of a substance is
the quantity of heat that is absorbed or released during a change of phase of 1 kg of the substance without any change in temperature
the quantity of heat that is absorbed or released during a change of phase of 1 kg of the substance with any change in temperature
S.I unit for specific latent heat is
J kg-1
J kg-1 oC-1
Quantity of heat absorbed during melting or released during freezing of 1 kg of the substance without any change of temperature is known as
specific latent heat of fusion
specific latent heat of vaporisation
specific heat capacity
Latent heat absorbed during melting and boiling does not increase the average kinetic energy of the molecules
True
False
Figure above shows
Heating curve
Cooling curve
Which state shows the solid is melting
AB
BC
CD
DE
During state DE, latent heat is absorbed
to break the bond between molecules
to increase kinetic energy
to increase the temperature
During the changing phase from liquid to solid,
latent heat is absorbed to weaken the bond between molecules
latent heat is released so that bond between molecules is strengthened
latent heat is absorbed to break the bond between molecules
Which statement is not happened when gas cools to boiling point (cooling curve)?
Heat is released
Temperature decreases
Kinetic energy increases
Which shows the example of latent heat of fusion?
Ice melts
Water boils
Water vapour condenses
