Particle Model of Matter

• What’s the equation for Density ?

  density (kg/m^3) = mass (kg) / volume (m^3)
• What’s internal energy?

  The energy stored inside a system by particles (atoms and molecules) to make up the system.

  It’s the total kinetic energy and potential energy of the particles that make up a system.

  Heating changes the energy stored within the system by increasing the energy of particles that make up the system - this either raises the temperature or the system produces a change in state
• What’s specific latent heat ?

  the amount of energy to change 1kg of it from one state to another
• What’s the equation for Specific latent heat?

  Energy (J) = mass (kg) x specific latent heat (J/kg)