Which of the following reactions is possible in the given conditions?
NH3 and HCl at room temperature
CO2 and C2H4 at room temperature
CO2 and CO at room temperature
CO2 and N2O at room temperature
NH3 and HCl undergo chemical reaction at room temperature.
Answer the following questions based on the P–T phase diagram of CO2:
(a) CO2 at 1 atm pressure and temperature – 60 °C is compressed isothermally. Does it go through a liquid phase?
(b) What happens when CO2 at 4 atm pressure is cooled from room temperature at constant pressure?
(c) Describe qualitatively the changes in a given mass of solid CO2 at 10 atm pressure and temperature –65 °C as it is heated up to room temperature at constant pressure.
(d) CO2 is heated to a temperature 70 °C and compressed isothermally. What changes in its properties do you expect to observe?