Question 1: Air enters a four-cylinder, six-liter spark-ignition engine Otto cycle takes in air at 95 kPa and 20C. The minimum enclosed volume is one quarter of the maximum enclosed volume. When the engine produces 100 kW power, determine the rate of heat addition to this engine. Use constant specific heat at room temperature. Question 2: Consider a Carnot cycle executed in a closed system with 0.6 kg of air. The temperature limits of the cycle are 300 and 1100 K, and the minimum and maximum pressures that occur during the cycle are 20 and 3000 kPa. Assuming constant specific heats, determine the net-work output per cycle.