What differences do you expect between the P-v-T diagrams of water and ammonia?

Question

1. What      differences do you expect between the P-v-T diagrams of water and ammonia?
2. What      quality (x) means in a liquid-vapor region. Draw the 2-phase region and      show how x is calculated.                                                  
3. Define      enthalpy in anyway you can.                                                                                      
4. When      do you call a gas an ideal gas?                         
5. In      what conditions can you use ideal gas law for water vapor?

Explanation / Answer

1)z for ammoniais less than 1 ,f or water it is greater than 1

2) quality is the percent of liquid in a liquid vapour region .

3) enthalpuy is the total amount of energy contained in a matter

4) when z=1

5) when presure is very low and volume very high

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