4.3 Specific Latent Heat

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 o}C^-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