Question

What is the difference between PV and TS diagrams in Carnot cylce? Why in PV diagrams there are 2 isothermals (pressure is not constant), but looking at a TS diagram both isothermal lines (inside the bell) are also isobaric?

Answer 1

In a Carnot cycle, PV (pressure-volume) and TS (temperature-entropy) diagrams are graphical representations used to analyze the thermodynamic processes involved. Let's break down the differences between these two diagrams:

1. PV Diagram:
   • The PV diagram represents the relationship between pressure and volume during the Carnot cycle.
   • The diagram consists of four processes: two adiabatic (no heat transfer) and two isothermal (constant temperature