Question

Shown below is a rough sketch of the unary phase diagram (pressure vs. temperature) for carbon dioxide (CO2), dry ice. Note the diagram is not drawn to scale and contains breaks in the axes to signify this. Using the diagram, answer the following questions:

(a) Give the pressure (in atm) and temperature (in ∘C) values for the triple point of dry ice.

Pressure:
Temperature:

(c) Give the pressure (in atm) and temperature (in ∘C) values for the critical point of dry ice.
Pressure:
Temperature:

(d) Give the pressure (in atm) and temperature (in ∘C) values of the phase transformations observed under ambient pressure conditions.
Pressure:
Temperature:

Answer 1

a)5.11 -56.4
b)I
c)73 31.11
d)1 -78.5

Answer 2

second part of questions a and d are wrong

Answer 3

no they're right, stop putting others off. when i tried it, it came up as right.

Answer 4

Anonymous is right!

a)5.11 atm and -56.3
b) I
c) 73 atm and 31.1
d) 1 atm -78.5