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Calculate the amount of heat needed to warm

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Reference no: EM132591522

  1. A heat engine converts the flow of heat that results from a difference in temperatures into work. Write one or two sentences describing the temperatures at which a very efficient heat engine operates.
  2. If you wanted to improve the efficiency of a heat engine, which of the temperatures at which it operates would you increase?
  3. Calculate the amount of heat needed to warm 24.6 kg of water from a room temperature of 20 degrees Celsius to 60 degrees Celsius for use in a dishwasher.
  4. If the water heater has an efficiency of 61%, how much energy is lost to the surroundings while heating the water for one cycle of this dishwasher?

Reference no: EM132591522

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