Curves and Processes
Definition
A curve (or line) is a geometric construct. It depicts a process that transforms a system from its start state to its end state.
Where it occurs
Special processes include constant volume, constant pressure, constant temperature and constant entropy. We also supply curves for polytropic processes (rarely seen on a Ts diagram), and irreversible compression and expansion.
Special features
The curve retains a handle (small circle) at the location of the original POI (see below). Clicking inside the handle highlights the curve. For pressure-volume plots, integration of the curve between limiting volumes yields the reversible work of expansion or compression.
How to draw it
Put the POI at its required position and then press one of the plot buttons (isochor, isobar, isotherm, etc).
The theory
... is explained separately for each curve/ process.
Exercises
Links
... to follow.