TOPICS
• Definition of heat and temperature
• Thermal equilibrium
• Thermal expansion
• Coefficient of thermal expansion
• Formula: ΔL=αLΔT
• Heat Energy and Specific Heat Capacity
•Heat transfer equation: Q=mcΔT
•Latent heat of fusion and vaporization
•Example Problems
,•Heat and temperature are two different but closely related
concepts.
• Note that they have different units:
•Temperature typically has units of degrees Celsius or Kelvin
and heat has units of energy, Joules .
,•🔹 What do you think will happen to th
atoms as the temperature increases? Wh
happens to the metal rod as temperature
increases?
, •🔹 What do you think will happen to the atom
temperature increases?
•Why do you think they move farther apart whe
heated?
•When you increase the temperature, th
atoms get more kinetic energy, and as t
vibrate more vigorously, they move fart
apart. This causes the material to expan
• Definition of heat and temperature
• Thermal equilibrium
• Thermal expansion
• Coefficient of thermal expansion
• Formula: ΔL=αLΔT
• Heat Energy and Specific Heat Capacity
•Heat transfer equation: Q=mcΔT
•Latent heat of fusion and vaporization
•Example Problems
,•Heat and temperature are two different but closely related
concepts.
• Note that they have different units:
•Temperature typically has units of degrees Celsius or Kelvin
and heat has units of energy, Joules .
,•🔹 What do you think will happen to th
atoms as the temperature increases? Wh
happens to the metal rod as temperature
increases?
, •🔹 What do you think will happen to the atom
temperature increases?
•Why do you think they move farther apart whe
heated?
•When you increase the temperature, th
atoms get more kinetic energy, and as t
vibrate more vigorously, they move fart
apart. This causes the material to expan
