A polytropic process is a thermodynamic process that is reversible and obeys the relation:
where p is the pressure, V is volume, n, the polytropic index, is any real number, and C is a constant. This equation can be used to accurately characterize processes of certain systems, notably the compression or expansion of a gas and in some cases liquids and solids.
Read more about Polytropic Process: Applicability, Polytropic Specific Heat Capacity, Relationship To Ideal Processes, Notation, Other, See Also
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“Rules and particular inferences alike are justified by being brought into agreement with each other. A rule is amended if it yields an inference we are unwilling to accept; an inference is rejected if it violates a rule we are unwilling to amend. The process of justification is the delicate one of making mutual adjustments between rules and accepted inferences; and in the agreement achieved lies the only justification needed for either.”
—Nelson Goodman (b. 1906)