All GRE Subject Test: Chemistry Resources
Example Questions
Example Question #1 : Equilibrium Constant And Reaction Quotient
In the above reaction, by what factor would the reaction quotient change if the concentration of were doubled?
Possible Answers:
No change
Correct answer:
Explanation:
For a general chemical equation , where A, B, C, and D are elements and the Greek letters are their coefficients, we have the reaction quotient equation:
We can find the reaction quotient equation for our reaction by substituting the variables.
Notice that the concentration of is in the denominator and is squared, so doubling the concentration of changes the reaction quotient by a factor of one-fourth.
Kimberly
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University of Connecticut, Bachelor of Chemistry, Chemistry. University of Connecticut, Doctor of Philosophy, Organic Chemist...
Yongmao
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Nankai University, Bachelor of Science, Chemistry. Washington University in St Louis, Doctor of Philosophy, Organic Chemistry.
All GRE Subject Test: Chemistry Resources
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