In a Reversible Chemical Reaction at Equilibrium, the Concentration of X

question 14

Multiple Choice

In a reversible chemical reaction at equilibrium, the concentration of X (the reactant) is 0.75 moles/liter, and the concentration of Y (the product) is 2.25 moles/liter. At 25° C, what would be the Keq?

• A)37.5
• B)1.69
• C)3.0
• D)1.50
• E)0.33

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Definitions:

Linear Equation

A mathematical expression that represents a straight line when plotted on a graph, typically in the form y = mx + b.

Vertical Intercept

The point at which a line meets the vertical axis of a graph.

Dependent Variable

A variable that changes as a consequence of a change in some other (independent) variable; the “effect” or outcome.

Independent Variable

In statistical and mathematical models, the variable that is manipulated or changed to observe its effect on a dependent variable.