Two students measured an equilibrium constant for the same chemical reaction. Ke

Question

Two students measured an equilibrium constant for the same chemical reaction. Ken obtained a value of 130 for the equilibrium constant, but Barbie obtained a value of 11.4. Both were correct. How?

a: The values vary according to measurements made. Ken measured product concentrations, but Barbie measured reactant concentrations.

b: The values vary according to the starting conditions of the reaction prior to equilibrium. Ken started with all reactants but Barbie started with all products.

c: The values vary according to the stoichiometric coefficients used. The balancing coefficient Ken used must be double that Barbie used.

d: The values vary according to direction of reaction. Ken used the reverse reaction.

e: The instructor made a mistake--the equilibrium constant must always be the same.

Explanation / Answer

d: The values vary according to direction of reaction. Ken used the reverse reaction.

Related Questions

Navigate

• Browse (All)
• Browse T
• Subjects

Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.