3F - 6. Heat Transfers

What is the specific heat capacity of water?

• 2300000 J/kg

• 4200 J/(kg•°C)

• 900 J/(kg•°C)

• 330000 J/kg

What is the equation to calculate energy transferred?

• P = E/t

• Q = mL

• Q = mcΔT

• E = mc²

What is the specific latent heat of fusion for ice?

• 900 J/(kg•°C)

• 330000 J/kg

• 4200 J/(kg•°C)

• 2300000 J/kg

Which material is the best thermal conductor?

• Gases

• Metals

• Plastic

• Wood

What happens to water when it reaches 100°C in a kettle?

• It freezes

• It absorbs latent heat of fusion

• It cools down

• It turns into steam

What is the process called when thermal energy is transferred through a metal bar?

• Convection

• Insulation

• Conduction

• Radiation

What is the specific latent heat of vaporisation for water?

• 900 J/(kg•°C)

• 2300000 J/kg

• 4200 J/(kg•°C)

• 330000 J/kg

What is the main reason for using water in central heating systems?

• It is easy to find

• It is a good insulator

• It has a high specific heat capacity

• It is cheap

What is the term for the energy required to change a solid to a liquid?

• Thermal capacity

• Latent heat of fusion

• Latent heat of vaporisation

• Specific heat capacity

Which of the following is a poor thermal conductor?

• Wood

• Aluminium

• Iron

• Copper