1.

For his 18th birthday in February Peter plants to turn a hut in the garden of his parents into a swimming pool with an artifical beach. In order to estimate the consts for heating the water and the house , peter obtains the data for the natural gas combustion and its price. Calculate the energy (in MJ) which is requried of heat the water in the pool to 22.0^(@)C and the energy which is required of heat the initial amount of air (21.0% of O_(2), 79% of N_(2)) to 30.0^(@)Cat a pressure of 1.013 xx 10^(5) Pa. In February , the outside temperature is about 5^(@) C in Northern Germany. Since the concrete walls and the cost of the house are relatively thin (20.0cm) there will be a loss of energy . This energy is released to the surroundings (heat loss released to water and/or ground should be neglected ). The heat conductivity of the wall and the roof is 1.00 WK^(-1)M^(-1)

Answer»


SOLUTION :N//A


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