Which of the Following Statements Regarding the Average Rate of a Reaction

question 200

Multiple Choice

Which of the following statements regarding the average rate of a reaction is NOT true?

• A)The change in concentration of reactant or product is not always linear with time.
• B)The average reaction rate usually decreases as the reaction proceeds.
• C)The average reaction rate can be determined from the slope of a line drawn between two points on a plot of concentration versus time.
• D)The average reaction rate can be determined from the slope of the tangent line drawn at time = 0 on a plot of concentration versus time.
• E)The average rate usually depends on the concentrations of reactants.

---

Definitions:

Linearly Related

Describes a relationship between two variables where a change in one variable is associated with a proportional change in the other.

Coefficient Of Determination

A statistical measure that represents the proportion of the variance for a dependent variable that's explained by an independent variable or variables in a regression model.

Covariance

An indicator showing the degree to which two variables fluctuate in unison.

Standard Error Of Estimate

A measure of the accuracy with which a sample distribution represents a population, particularly in regression analysis; it represents the average distance that the observed values deviate from the regression line.