Consider the air conditioning of a house through use of solar energy. At a particular location, the flux of solar radiation allows a large tank of water to be maintained at 205 °C. During a particular time interval, heat in the amount of 1,000 kJ must be extracted from the house to maintain its temperature at 20 °C when the surrounding temperature is 32 °C. Treating the tank of water, the house, and the surroundings as heat reservoirs, determine the minimum amount of heat that must be extracted from the tank of water by any device to accomplish the required cooling of the house. No other sources of energy are available.