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Equilibrium Constant Quiz

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Questions and Answers

What is the definition of an equilibrium constant?

An equilibrium constant is a ratio of the concentrations of products to reactants at equilibrium, with each concentration raised to the power of its coefficient in the balanced equation.

If the equilibrium constant (Keq) for the isomerization of glucose-6-phosphate (G6P) to fructose-6-phosphate (F6P) is 0.428, what does this indicate about the relative concentrations of G6P and F6P at equilibrium?

A Keq of 0.428 indicates that at equilibrium, the concentration of G6P is greater than that of F6P.

How can you calculate the concentration of fructose-6-phosphate (F6P) at equilibrium if the initial concentration of glucose-6-phosphate (G6P) is 0.1 M?

Use the equation Keq = [F6P]/[G6P] to find [F6P]: rearranging gives [F6P] = Keq * [G6P] = 0.428 * 0.1 = 0.0428 M.

Explain the significance of the value of the equilibrium constant (Keq) in chemical reactions.

<p>The value of Keq indicates the tendency of a reaction to favor products or reactants; a value greater than 1 indicates a favoring of products, while a value less than 1 indicates a favoring of reactants.</p> Signup and view all the answers

What is the relationship between the concentrations of G6P and F6P at equilibrium if 0.1 M G6P is converted to F6P?

<p>At equilibrium, for every decrease in the concentration of G6P, the concentration of F6P increases by a factor defined by Keq, resulting in specific ratios depending on the equilibrium state.</p> Signup and view all the answers

Study Notes

Equilibrium Constant

The equilibrium constant (Keq) is a measure of the ratio of products to reactants at equilibrium for a reversible reaction
The Keq for the isomerisation of glucose-6-phosphate (G6P) to fructose-6-phosphate (F6P) is 0.428 at 25°C
This means that at equilibrium, there will be more G6P than F6P

Calculating Equilibrium Concentrations

The initial concentration of G6P is 0.1 M
F6P is formed only from G6P
Using the Keq value and the initial concentration of G6P, the equilibrium concentration of F6P can be calculated

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Description

Test your understanding of the equilibrium constant (Keq) and its role in reversible reactions. This quiz will cover concepts related to the isomerisation of glucose-6-phosphate to fructose-6-phosphate and how to calculate equilibrium concentrations. Get ready to apply your knowledge of chemical equilibrium!