Answer the following questions based on the P-T phase diagram of CO_(2): Describe qualitatively the changes in a given mass of solid CO_(2)at 10 atm pressure and temperature - 65 ^(@) Cas it is heated up to room temperature at constant pressure.

Answer the following questions based on the P-T phase diagram of CO_(2

1.	Answer the following questions based on the P-T phase diagram of CO_(2): Describe qualitatively the changes in a given mass of solid CO_(2)at 10 atm pressure and temperature - 65 ^(@) Cas it is heated up to room temperature at constant pressure.
Answer» Solution :It turns to LIQUID phase and then to vapour phase. The fusion and BOILING points are where the HORIZONTAL line on P-T diagram at the constant pressure of 10 ATM intersects the fusion and vaporisation curves.