G Heat leaks from a house at the rate of 0.525 kJ/sec per degree Celsius difference in temperature between the house maintained at 20 oC and the outside air at 0 oC. If a reversible heat pump used to keep the house warm, what is the power required to maintain the house at 20 oC

An ideal otto cycle with air as the working fluid has a compression ratio of 8. the minimum and maximum temperatures in the cycle are 300 k and 1340 k. use constant specific heats at room temperature to determine (a) the amount of heat transferred to the air during the heat- addition kj/kg, (b) the thermal efficiency, and (c) the thermal efficiency of a carnot cycle ope limits. process, in rating between the same temperature