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Phase Diagrams

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Wize University Chemistry Textbook > Phase Transitions and Phase Diagrams

Phase Diagrams

6 Activities

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The phase diagram of Argon is shown below. Argon has two distinct solid phases α and β.
When the solid-α is more dense than solid-β.

a) Label the phases on the diagram below.










b) Can solid-β undergo sublimation? Explain your answer.


c) Label the triple point(s) on the graph and describe what phases are present at those points


d) Which solid can be obtained by cooling a sample of gas at atmospheric pressure?



More Phase Diagrams Questions:
Consider the following phase diagram for an unknown compound X.
What is the normal boiling point of compound X?
Phase Diagrams
The phase diagram of Argon is shown below. Argon has two distinct solid phases α and β.
When the solid-α is more dense than solid-β.
a) Label the phases on the diagram below.
The figure below is a phase diagram for iodine (I2). Use the figure to answer the following two questions
The phase diagram of Argon is shown below. Argon has two distinct solid phases α and β. When the solid-α to solid-β phase transition occurs, heat is given off.
a) Label the sections of the phase diagram with the appropriate phases
b) Which has a higher density solid-α or solid β?
Phase Diagrams: N2
Shown below is a phase diagram forN2{\small \text{N}_2}
Label the phases of the phase diagram, the triple point and the critical point
What is the normal boiling point of N2{\small \text{N}_2}?
Practice: Phase Diagrams
Refer to the phase diagram below for the following questions.
Shown below is a phase diagram for N2
a) What is the normal boiling point of N2N_2 ? (enter answer in K)
b) What is the normal freezing point of N2N_2? (enter answer in K)
Consider the following phase diagram:
Which of the above locations shows the gas'liquid phase transition line?
Practice: Phase Diagrams
Refer to the phase diagram below for the following questions.
Phase Diagrams
The phase diagram of Argon is shown below. Argon has two distinct solid phases α and β.
When the solid-α is more dense than solid-β.
a) Label the phases on the diagram below.
Intermolecular forces: Phase Diagrams
Using the following phase diagram, can you determine whether the solid or liquid phase is more dense? What is the phase at 5 atm and 35 K? At a pressure of 3 atm, what temperature range would you expect to find a gas? At what approximate temperature and pressure would we expect to find the triple point?
Phase Diagrams
Choose which of the following statements are true:
The critical point on a phase diagram indicates where the liquid and gas phases become identical for a substance
The boiling point of a compound is defined as the temperature where the vapour pressure is equal to the surrounding pressure
Phase Diagram
The point on a phase diagram where all three phases of a substance are in equilibrium is known as:
Phase diagrams
The following phase diagram is of argon gas
(a) Which has a higher density? Solid alpha or beta?
(b) Can solid alpha undergo sublimation?
Phase Diagram: N2
Shown below is a phase diagram for N2
a) What is the normal boiling point of N2N_2 ?
b) What is the normal freezing point of N2N_2?
According to the phase diagram given for substance W, which of the following statements is incorrect?
In the phase diagram below, which is the gas to liquid transition?
Phase Diagrams
The heating Curve for Water is shown below
What is happening along the line labelled A?
The point on a phase diagram where all three phases of a substance are in equilibrium is known as:
Considering the following phase diagram
Which of the following statements is correct?
Considering the following phase diagram
The process that describes the transition from a to b is
Considering the following phase diagram
Which of the following statements is correct?
Shown below is a phase diagram for N2
a) What is the normal boiling point of N2N_2 ?
b) What is the normal freezing point of N2N_2?
Practice: Phase Diagrams
Refer to the phase diagram below for the following questions.
Phase Diagrams
In the phase diagram below, identify the process occurring going from point A to B.