The Otto engine intakes 0.4 kg of air at 100 kPa and 300 K. The air is compressed at a compression ratio of 12. Combustion adds 600 KJ/kg of heat. B - ( *5 ) Y Use air data at the assumed average temperature of 800 K. 300 - 800 =0.375 a) Fill out the tables below State 1 State 2 State 3 State 4 Pressure 100 kPa 100 KPa Temperature 300 K 30 ok volume Constant Specific Volume 0.86 0.08 0. 08 0. 86 V= V V 2= 1/3 V 2 = Vg V, = VA Process 1-2 Process 2-3 Process 3->4 Process 4-1 Net k] kg 443.91 m kgl O O W kj 71 b) What is the net work from one cycle of the engine (in kJ)? c) What is the efficiency of the engine? "h = & in d) For Process 1->2, calculate Au using the specific heat and calculate work using the appropriate work equation. How much difference is there between the two approaches