Chemistry Practice Problems Atomic, Ionic, and Molecular Solids Practice Problems Solution: Which of the following statements is(are) true?(a)...

Solution: Which of the following statements is(are) true?(a) Particles in a crystalline solid are closely spaced, highly ordered in arrangement, and have no thermal motion.(b) Relative to their kinetic energy, gas particles exhibit weak intermolecular attractions.(c) Particles in the solid state experience strong intermolecular attractions relative to their kinetic energy.(d) Statements (a), (b), and (c) are all true.(e) Only statements (b) and (c) are true.

Problem

Which of the following statements is(are) true?

(a) Particles in a crystalline solid are closely spaced, highly ordered in arrangement, and have no thermal motion.

(b) Relative to their kinetic energy, gas particles exhibit weak intermolecular attractions.

(c) Particles in the solid state experience strong intermolecular attractions relative to their kinetic energy.

(d) Statements (a), (b), and (c) are all true.

(e) Only statements (b) and (c) are true.

Solution

We’re being asked to identify which of the given statements is/are true.


Recall that the space between molecules within the three phases (solid, liquid, and gas) of matter affects how they respond to changes in volume, pressure, and temperature. Intermolecular forces of attraction also affects the behavior of molecules and determines the phase they would most likely form.


Let’s analyze each statement given:

(a) Particles in a crystalline solid are closely spaced, highly ordered in arrangement, and have no thermal motion.

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