Question

O KINETICS AND EQUILIBRIUM Interconverting Kp and Kc Consider the following chemical equilibrium: CaCO,G) = CaO (G)+CO,g) Now write an equation below that shows how to calculate from K, for this reaction at an absolute temperature 7. You can assume T is comfortably above room temperature. If you include any common physical constants in your equation be sure you use their standard symbols, found in the ALEKS Calculator Do X 8 ? 5 Check

Answer 1

Answer:

Step 1: Explanation:

Kc is defined as the amounts of products and reactants present at equilibrium in a reversible chemical reaction at a given temperature.

Kp is 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

Relationship between Kp and Kc is

Kp = Kc (RT)Δⁿ where, Δ n = ( moles of gaseous products - moles of gaseous reactants

Step 2: Solution

Given, CaCO₃(s)⇌CaO(s)+CO₂(g)

Δ n = ( moles of gaseous products - moles of gaseous reactants )

  Δ n = (0+1) -(0) = 1 [ because moles of solid is not considered ]

Since we know

Kp = Kc (RT)Δⁿ

then, Kc = Kp / (RT)Δⁿ

if  Δ n = 1 then   Kc = Kp / (RT) [ where R = gas constant = 8.314 J / mol.K ]