# Problem: Sketch the phase diagram:Which of the following statements is true about the phase diagram above?I. The solid is denser than the liquid.II. The melting point of the solid decreases as pressure is increased.III. Line AB represents fusion.IV. As the temperature is decreased from 200°C to 0°C at 0.9 atm, two phase changes occur.V. As the pressure is increased from 0.003 atm to 14 atm at 25°C, one phase change occurs.a) I, IIb) I, IVc) II, IVd) II, Ve) IV, V

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Sketch the phase diagram:

Which of the following statements is true about the phase diagram above?

I. The solid is denser than the liquid.

II. The melting point of the solid decreases as pressure is increased.

III. Line AB represents fusion.

IV. As the temperature is decreased from 200°C to 0°C at 0.9 atm, two phase changes occur.

V. As the pressure is increased from 0.003 atm to 14 atm at 25°C, one phase change occurs.

a) I, II

b) I, IV

c) II, IV

d) II, V

e) IV, V

What scientific concept do you need to know in order to solve this problem?

Our tutors have indicated that to solve this problem you will need to apply the Phase Diagram concept. You can view video lessons to learn Phase Diagram. Or if you need more Phase Diagram practice, you can also practice Phase Diagram practice problems.