Quote:
Originally Posted by christofoo
(I don't think you mean constant pressure process - doesn't seem to matter for the moment I know what you mean (adiabatic, I'd think).)
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In reality, no, it isn't a constant pressure process. However, for the sake of this argument, humor me and assume that in an ideal world, the exhaust absolute pressure and the intake absolute pressure are held constant for the intake and exhaust strokes of an ideal Otto cycle engine.