Quiz 7

• Specific heat capacity


  The change in internal energy per unit mass per unit rise in temperature.
• Specific latent heat of Vaporisation


  The heat energy required per unit mass to convert a liquid at its boiling point into gas at the same temperature.
• Specific latent heat of fusion


  The heat energy required per unit mass to convert a solid at its melting point into a liquid at the same temperature.
• Absolute zero


  The temperature at which a substance has minimum internal energy.
• Boyle’s law

  For a fixed mass of gas at constant temperature the pressure of the gas is inversely proportional to the volume it occupies.
• Internal energy


  The sum of randomly distributed potential and kinetic energies of the particles (e.g. atoms or molecules) of a body or system.
• Thermal equilibrium


  Two bodies are in thermal equilibrium if when placed in thermal contact there is no net movement of heat energy between them.
• pressure

  Pressure = Force / Area
• Density


  Mass per unit volume.
• Power


  Energy transferred per unit time.