Afour-cylinder, four stroke internal combustion engine has a bore of 6 cm and a stoke of 2.5 cm in each cylinder. the clearance volume is 16% of the cylinder volume at the bottom dead center. the process in each cylinder is modeled as an air-standard otto cycle with a temperature of 400 k and a pressure of 105 kpa at the beginning of compression and the maximum temperature of 2440 k in the cycle. the rate of heat added per unit mass is 550 kj/kg, during the combustion process. assume air to be an ideal gas with variable specific heats. a. draw the p-v diagram of the modeled otto cycle. label the given temperatures, pressure, and added heat b. calculate the network output per unit mass and solve for the thermal efficiency and the mean effective pressure of the cycle.