Thermal Expansion

• When substances like solid, liquid or gas are heated up, they expand, this kind of expansion is called thermal expansion

• Thermal expansion occurs when particles temperature increase and they move faster

• In simple words thermal expansion is the increase in volume when the temperature increases

  
  

Comparing Solid, Liquid And Gas

• Solid expands when it is heated

• Liquid expands more than a solid

• Gas expands more than liquid

Energy And Temperature

• Internal energy is a measure of the total energy of all the particles in the object

• This includes both the kinetic energy of the particles and chemical potential energy of the bonds between them. Supplying thermal energy to an object Will raise its temperature. The particles will move faster and they gain kinetic energy.

• The amount of energy required to boil a water depends on the mass of the water and the increase in the temperature

Specific Heat Capacity

• The energy required per unit mass per unit temperature increase.

• Specific Heat Capacity -: Energy required/ mass x increase in temperature