AP Chemistryeasymcq1 pt
Which species is omitted from an equilibrium constant expression?
A.Pure solids
B.Aqueous ions
C.Gases
D.Products
Explanation
Core Concept
Pure solids (and liquids) have constant concentration regardless of amount, so they are folded into K and omitted. Aqueous species and gases always appear.
Correct Answer
APure solids
More Unit 7: Equilibrium practice questions
- mediumDoubling the volume of a gaseous equilibrium mixture does what?
- hardWhich of these salts is most soluble?
- easyFor the reaction A(g) + B(g) ⇌ C(g), an equilibrium mixture contains 0.20 M A, 0.10 M B, and 0.40 M C. What is Kc?
- easyHow does the equilibrium constant for a reaction change when a catalyst is added?
- hardA mixture initially contains 2.0 M A. For 2A ⇌ B with K = 0.10, what is [B] at equilibrium (approximately)?
Practice more AP Chemistry questions with full explanations
Practice Unit 7: Equilibrium Questions →