Chapter 21, Problem 21.66QP

Interpretation Introduction

Interpretation: The equilibrium constant for the given reaction should be determined.

Concept Introduction:

• Equilibrium constant ( ${\text{K}}_{\text{C}}$): It is the ratio of product of product concentration raised to powers of their coefficient to product of reactant concentration raised to powers of their coefficient.

  For a general reaction $\text{aA+}\text{}\text{}\text{}\text{bB}\rightleftarrows \text{cC}\text{+}\text{dD}$,

  ${\text{K}}_{\text{C}}\text{=}\frac{{\left[\text{C}\right]}^{\text{c}}{\left[\text{D}\right]}^{\text{d}}}{{\left[\text{A}\right]}^{\text{a}}{\left[\text{B}\right]}^{\text{b}}}$      c, d, a and b are the co-efficient.

  • Acid rain: It is made up of water droplets that are unusually acidic because of atmospheric pollution, particularly the excessive amounts of sulfur and nitrogen released by cars and industrial processes.
  • Troposphere is the lowest region of the atmosphere, extending from the earth’s surface to a height of about 6 – 10 km.
  • To explain: importance of ${\text{SO}}_{\text{2}}$ and ${\text{SO}}_{\text{3}}$ balance in the troposphere.