Chapter 15, Problem 15.35QP

Interpretation Introduction

Interpretation:

The COCl₂ partial pressure (Kp) should be calculated given equilibrium constant and decomposition reaction at ${\text{572}}^{\text{0}}\text{C}$.

Concept Introduction:

Equilibrium constant: Concentration of the products to the respective molar concentration of reactants it is called equilibrium constant. If the K value is less than one the reaction will move to the left side and the K values is higher (or) greater than one the reaction will move to the right side of reaction.

Kp and Kc: This equilibrium constants of gaseous mixtures, these difference between the two constants is that Kc is defined by molar concentrations, whereas Kp is defined by the partial pressures of the gasses inside a closed system.

Kp:  The equilibrium constant calculated from the partial pressures of a reaction equation. It is used to express the relationship between product pressures and reactant pressures. It is unites number, although it relates the pressures.

Thermal decomposition reaction: This reaction caused by heat or decomposition of starting substance is the temperature at which the substance chemically decomposes. In other words large molecule being broken down into single elements (or) compounds for example COCl2 readily decomposed into CO and Cl₂.

To find: The equilibrium reaction should be identified given the statement.