Chapter 6, Problem 94AE

Interpretation Introduction

Interpretation: Change in moles of each gas ${\text{N}}_2$ , ${\text{H}}_2$ , ${\text{NH}}_{\text{3}}$ on indicated change should be predicted and tabulated.

  ${\text{N}}_2\left(g\right)+{\text{3H}}_2\left(g\right)\rightleftharpoons 2{\text{NH}}_{\text{3}}\left(g\right)$

Concept introduction:Le Chatelier established the qualitative effects of change in concentration or partial pressure of reactant on reaction equilibrium.

It suggests that if a certain change in concentration of substrates occurs then reaction proceeds so as to minimize the effects of changes. This way the direction of equilibrium can be altered by various changes and yield of the desired product can be enhanced. For example, Le Chatelier has improved the synthesis of ammonia by Haber’s process.

The yield of ammonia is increased when ammonia already formed is removed from the reactor that allows for more combination of nitrogen and hydrogen to form more ammonia.