Integrated Rate Laws and Reaction Order

Integrated Rate Laws and Reaction Order

Assessment

Interactive Video

Chemistry, Mathematics, Science

10th - 12th Grade

Hard

Created by

Patricia Brown

FREE Resource

This video tutorial on Chem Whiteboard demonstrates how to use Excel to determine the order and rate constant of a chemical reaction. It covers the rate law expressions for zeroth, first, and second order reactions, and explains how to use integrated rate laws to analyze concentration versus time data. The tutorial guides viewers through calculating natural log and inverse concentration values in Excel, plotting graphs, and determining the reaction order based on linearity. It concludes with calculating the rate constant from the graph's slope.

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10 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the order of a reaction if the rate does not depend on the concentration of the reactant?

First order

Second order

Third order

Zeroth order

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which mathematical tool is used to derive integrated rate law expressions from differential rate laws?

Geometry

Calculus

Statistics

Algebra

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

In Excel, which function is used to calculate the natural logarithm of a concentration value?

SQRT

LN

LOG

EXP

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the purpose of plotting concentration versus time graphs in Excel?

To measure the pH level

To identify the order of the reaction

To find the temperature of the reaction

To determine the color of the reactant

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

If the plot of natural log of concentration versus time is linear, what is the order of the reaction?

Second order

Third order

Zeroth order

First order

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What should you do after plotting a graph in Excel to display the equation and R-squared value?

Select 'Format Axis'

Select 'Add Trendline' and display equation

Select 'Change Chart Type'

Select 'Add Data Labels'

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What does the slope of the natural log of concentration versus time graph represent?

The rate constant

The activation energy

The equilibrium constant

The reaction quotient

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