• The origin of the term “swamp cooler” is not known – they certainly don’t work in a swamp.
  • Best conditions for cooling include a high temperature (over 80°F) and a low humidity (preferably less than 30%).
  • Evaporation is the conversion of a liquid to its vapor below the boiling temperature of the liquid.
  • Condensation is the change of state from a gas to a liquid.Explore how heat and temperature relate to phase change in this simulation.
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