Chemistry Practice Problems Phase Diagram Practice Problems Solution: During which of the following phase changes must h...

Solution: During which of the following phase changes must heat be added to overcome intermolecular forces?I. VaporizationII. SublimationIII. DepositionA) I onlyB) II onlyC) I and II onlyD) I and III onlyE) II and III only

Problem

During which of the following phase changes must heat be added to overcome intermolecular forces?

I. Vaporization

II. Sublimation

III. Deposition

A) I only

B) II only

C) I and II only

D) I and III only

E) II and III only

Solution

We are asked to identify which of the following phase changes must heat be added to overcome intermolecular forces.


Recall that a phase diagram shows the transition of matter between solid, liquid, and gas phases as temperature and pressure changes.


In a phase diagram, the different phases can be identified by their location:

• Solid: can be found at high pressure and low temperature

• Liquid: can be found between the solid and gas regions

• Gas: can be found at low pressure and high temperature


Solution BlurView Complete Written Solution