In Mollier diagram the following lines are given

Constant P- lines

Constant v- lines

Constant t- lines

Constant x- lines

Constant h– lines (horizontal)

Constant s – lines (vertical)

The process of isentropic where s=c

In Point 2 we take s= constant and then we go on to draw a vertical line from 1 to intersect P which is outlined at 2. We can observe it as an example that the steam is wet at 2 where dryness fraction of x2 (< x_{1}) is seen. In this regard the enthalpy drop h1- h2 can be read out from the chart.

The process of throttling where he= const

At point one the intersection of P1 and P2 is observed. Then in point 2 you need to go on and draw a horizontal line where P2at P meets. From the diagram it is seen that point 2 is superheated.

**Links of Previous Main Topic:-**

- Conversion of work into heat
- Introduction to carnot cycle
- Clausius inequality entropy and irreversibility introduction
- Ideal gas or perfect gas
- Introduction about air standard cycles
- Properties of pure substances introduction
- Heating of pure substances other than ice
- Temperature enthalphy graph formation of steam
- Temperature and specific entropy diagram for steam
- The process of thermodynamic and their various properties
- Types of steam table
- Mollier diagram h s axis

**Links of Next Mechanical Engineering Topics:-**