This is for a 300 level thermodynamics class. I am supposed to write a short paper comparing the 4 stroke engine to the otto cycle. I thought these were the same thing though? For my paper, i wrote what the 4 stroke are: intake, compression, power, exhaust...and described each one. Then i listed the 4 processes of the otto cycle: Process 1-2 is the Compression stroke. Process 2-3 is the firing of the spark plug. Process 3-4 is the Power stroke Process 4-1 is the Exhaust stroke and the Intake stroke Then I wrote a paragraph explaining why the ideal otto cycle doesn't exist in the real world because of heat transfer and friction. Does this sound right or am i missing something big?