cooling by evaporation

Cards (20)

  • evaporation is when liquid turns into gas
  • evaporation happens at any temperature
  • evaporation only happens on the surface of a liqui
  • evaporation doesnt have any bubbles
  • evaporation is a slow procces
  • evaporation cause cooling
  • boiling happened at a specific temerature
  • boiling happens when the particles in a liquid vibrate so much that they break away from each other
  • evaporation happens when a liquid turns into a gas and the liquid evaporates
  • boiling happens throughout the liquid
  • boiling has bubbles
  • boiling is a rapid process
  • boiling doesnt cause cooling
  • factors that effect rate of evaporation are temperature, surface area and wind current (air)
  • particles at surface evaporate as they have sufficient energy to escape and become gas
  • different liquids have different forces holding the particles together. some have strong forces and some have weak forces.
  • when a liquid evaporates, thermal energy is removed and the temperature is decreased
  • particles in water have diffrent energies
  • when particles with the highest energy escape from the water, this will lower the average energy of the particles that remain. therefore the temperature of the water will decrease, so evaporation cause cooling
  • evaporation lowers the average energy of the particles left and decreases the temperature