Let us use a heat pump to cook dinner! You set up a heat pump that has 40 % of its theoretical maximum COP, and you want to use heat from the kitchen at 24°C to supply 600 W of heat energy for boiling soup. Assume the soup is mostly water and that you want to heat it to 100°C. (a) How much electrical energy must the heat pump use?   The heat pump uses  _______J of electrical energy. (b) How much better is this than simply using an electric hot plate to supply the 600 W of heat energy?  Using a heat pump is _____ times better than using an electric hot plate.

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