## Solution for problem 110P Chapter 15

# Solved: Consider the following generic equilibrium in which a solid reactant is in

Introductory Chemistry | 5th Edition

Consider the following generic equilibrium in which a solid reactant is in equilibrium with a gaseous product:

\(A(s) \rightleftharpoons B(g)\)

These diagrams represent the reaction mixture at the following points: (a) initially; (b) after a short period of time has passed; and (c) at equilibrium.

For each diagram, calculate the concentrations of the spheres representing A(s) and B(g). Assume that each block in the grid has an area of 1 cm2 and report your answer in units of spheres/cm2. (Since the spheres in the solid are not free to move, the solid only occupies the area that it covers. The spheres in the solid, however, are free to move and therefore occupy the entire grid.) What do you notice about the concentrations of A(s) and B(g) in these representations? Write an equilibrium expression for the generic reaction and use the results of your calculations to explain why A(s) is not included in the expression.

Equation Transcription:

⇌

Text Transcription:

A(s)⇌ B(g)

**Accepted Solution**

Step 1 of 3

(1)

Given the area of each grid isand therefore the concentration of both species in each box are;

Box (a)

The total number of A spheres is 24

Since the A is solid. Therefore, the total area occupied will be the actual area enclosed by the sphere.

Hence, the concentration of A;

There are no B spheres in box A.

Box (b)

A sphere:

The total number of A spheres is 18.

The number of the boxes they occupy are 2.

Hence, the concentration of A;

B sphere:

The total number of B spheres are 6.

The number of boxes they occupy is 49 because they are gaseous molecules and they fill the container completely.

Hence, the concentration of B;

Box (c)

A sphere:

The total number of Apheresis 9

The number of the boxes they occupy are 1

Hence, the concentration of A;

B sphere:

The total number of B spheres are 15

The number of boxes they occupy is 49

Hence, the concentration of B;

**Step 2 of 3**

**Step 3 of 3**

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Solved: Consider the following generic equilibrium in which a solid reactant is in