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MDCAT
Chemistry
2018

Chemistry · Chemical Equilibrium

Work through this past-paper style MCQ, then read the full explanation. Practice more chemistry questions on mMCQ with adaptive practice and topic analytics.

Question

If the value of Kc is very large then it shows that _________completed.

Options
  • A

    Forward reaction

  • B

    Reverse reaction

  • C

    Equilibrium is maintained

  • D

    Kc is moderate

Explanation

Kc=[product]/[reactant], now if the Kc value is very large, we can use the equation to conclude that the concentration of products are higher than reactants, depicting that the forward reaction has completed or is near completion.

The equilibrium constant Kc is defined as the ratio of product of concentrations of products to the product of concentration of reactants i.e. the ratio of the two rate constants

Kc=[products]/[reactants]

When the value of Kc is large it shows that [P]>[R] and so the forward reaction has completed.

The equilibrium constant Kc is defined as the ratio of product of concentrations of products to the product of concentration of reactants i.e. the ratio of the two rate constants
Kc=[products]/[reactants]
When the value of Kc is large it shows that [P]>[R] and so the forward reaction has completed.

The equilibrium constant Kc is defined as the ratio of product of concentrations of products to the product of concentration of reactants i.e. the ratio of the two rate constants
Kc=[products]/[reactants]
When the value of Kc is large it shows that [P]>[R] and so the forward reaction has completed.

The equilibrium constant Kc is defined as the ratio of product of concentrations of products to the product of concentration of reactants i.e. the ratio of the two rate constants
Kc=[products]/[reactants]
When the value of Kc is large it shows that [P]>[R] and so the forward reaction has completed.

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Tagged under Chemistry · Chemical Equilibrium · 2018