While driving v1= 65 mph a car achieves fuel economy of q = 35 mpg. what is the fuel economy of this car when driving v2 = 90 mph? assume that the overall efficiency stays constant.

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