Chapter 12, Problem 65QRT

(a)

Interpretation Introduction

Interpretation:

For the given endothermic reaction, the affect of equilibrium on increasing the temperature has to be given.

Concept Introduction:

Le Chatelier's principle:

It states that if a system in equilibrium gets disturbed due to modification of concentration, temperature, volume, and pressure, then it reset to counteract the effect of disturbance.

Endothermic reaction:

For an endothermic reaction, an increase in temperature results in an increase in ${\text{K}}_{\text{c}}$.  At higher temperatures, endothermic reactions are more product favoured.

(b)

Interpretation Introduction

Interpretation:

For the given endothermic reaction, the affect of equilibrium on on addition of more of ${\text{NH}}_{\text{4}}\text{HS}$ has to be given.

Concept Introduction:

Refer part (a)

(c)

Interpretation Introduction

Interpretation:

For the given endothermic reaction, the affect of equilibrium on addition of ${\text{NH}}_{\text{3}}$ has to be given.

Concept Introduction:

Refer part (a)

(d)

Interpretation Introduction

Interpretation:

For the given endothermic reaction, the affect on partial pressure of ${\text{NH}}_{\text{3}}$ by removal of some of ${\text{H}}_{\text{2}}\text{S}$ has to be given.

Concept Introduction:

Refer part (a)