Specific Latent Heat Quiz

What is the concept of specific latent heat?

• The energy required to change a substance from one state to another without changing its temperature

• A measure of the average internal energy of particles

• The energy released when a substance changes states

• The energy required to increase the temperature of a substance

What is the specific latent heat of fusion?

• The energy released when a substance changes states

• The energy change when a substance changes between a liquid and a gas

• The energy required to increase the temperature of a substance

• The energy change when a substance changes between a solid and a liquid

What is the specific latent heat of vaporization?

• The energy released when a substance changes states

• The energy change when a substance changes between a liquid and a gas

• The energy change when a substance changes between a solid and a liquid

• The energy required to increase the temperature of a substance

What is the equation for specific latent heat?

• E = mc

• E = m x specific latent heat

• E = ml

• E = mc^2

What is the specific latent heat of fusion for water?

• 2,260,000 joules per kilo

• 334,000 joules per kilo

• 5,650,000 joules per kilo

• 1,000,000 joules per kilo

What is the specific latent heat of vaporization for water?

• 1,000,000 joules per kilo

• 5,650,000 joules per kilo

• 2,260,000 joules per kilo

• 334,000 joules per kilo

What is the energy required to completely boil 2.5 kilos of water if the specific latent heat of vapourisation is 2,600,000J/kg?

• 1,000,000 joules

• 5,650,000 joules

• 2,260,000 joules

• 334,000 joules

What happens to the temperature of a substance during a change in state?

• It increases continuously

• It fluctuates randomly

• It decreases continuously

• It remains constant