Heat Transfer/ Specific Heat

What is Specific Heat?

• The  amount of thermal energy required to increase the temperature of 1kg of a material by 1°C.
  
• The  amount of radiant energy required to increase the temperature of 1kgof a material by 1°C
• The  amount of energy required to increase the temperature of 1kgof a material by 1°C.
• The  amount of friction  required to increase the temperature of 1kgof a material by 1°C.

Which material heats up slowest?

• Aluminium

• Concrete

• Diamond

• Glass

• Water

What is the equation for specific heat capacity?

A high specific heat means...

• It heats up quickly with energy added
• It requires more energy to change temperature

What are the one of the units of energy?

• calorie

• J/g°C

• kg

• °C

A pot of water is boiled from 20 °C to 100 °C. What is the ΔT ?

• 20 °C

• 100 °C

• 40 °C

• 80 °C

As the kinetic energy of the molecules in a substance increases, the temperature of the substance __________.

• increases
• decreases

Sweating is an __________________ process because heat is released.

• endothermic

• exothermic

Ice cream melting is an example of an __________ process.

• endothermic

• exothermic

Heat flows from _______ to _________.

• warm to cool

• cool to warm