1) What is this substance’s boiling point at 1 atmosphere of pressure? 2) What is this substance’s freezing point at 1 atmosphere of pressure?

3) What is this substance’s melting point at 1 atmosphere of pressure?

4) Above what temperature is it impossible to condense this substance into a liquid, regardless of the pressure?

5) Which letter represents the gas phase?

6) At what pressure does all three phases coexist?

7) Which letter represents the solid phase?

8) Which letter represents the liquid phase?

9) At what temperature do all three phases coexist?

10) Which letter represents the triple point?

11) Which letter represents the critical point?

12) What is this substance’s condensation point at 1 atmosphere of pressure?