menu
bartleby
search
close search
Hit Return to see all results
close solutoin list

The amount of CO 2 in the atmosphere is 0 .04% (0 .04% = 0 .0004 L CO 2 /L atmosphere). The world uses the equivalent of approximately 4 .0 × 10 12 kg of petroleum per year to meet its energy needs. Determine how long it would take to double the amount of CO 2 in the atmosphere due to the combustion of petroleum. Follow each of the steps outlined to accomplish this: a. We need to know how much CO 2 is produced by the combustion of 4 .0 × 10 12 kg of petroleum. Assume that this petroleum is in the form of octane and is combusted according to the following balanced reaction: 2C 8 H 18 ( L ) + 25O 2 ( g ) → 16CO 2 ( g ) + 18H 2 O ( g ) By assuming that O 2 is in excess, determine how many moles of CO 2 are produced by the combustion of 4 .0 × 10 12 kg of C 8 H 18 . This will be the amount of CO 2 produced each year. b. By knowing that 1 mol of gas occupies 22.4 L, determine the volume occupied by the number of moles of CO 2 gas that you just calculated. This will be the volume of CO 2 produced per year. c. The volume of CO 2 presently in our atmosphere is approximately 1 .5×10 18 L. By assuming that all CO 2 produced by the combustion of petroleum stays in our atmosphere, how many years will it take to double the amount of CO 2 currently present in the atmosphere from just petroleum combustion?

BuyFindarrow_forward

Chemistry In Focus

7th Edition
Tro + 1 other
Publisher: Cengage Learning,
ISBN: 9781337399692

Solutions

Chapter
Section
BuyFindarrow_forward

Chemistry In Focus

7th Edition
Tro + 1 other
Publisher: Cengage Learning,
ISBN: 9781337399692
Chapter 9, Problem 50E
Textbook Problem
8 views

The amount of CO 2 in the atmosphere is 0 .04% (0 .04% = 0 .0004 L CO 2 /L atmosphere). The world uses the equivalent of approximately 4 .0 × 10 12 kg of petroleum per year to meet its energy needs. Determine how long it would take to double the amount of CO 2 in the atmosphere due to the combustion of petroleum. Follow each of the steps outlined to accomplish this:

a. We need to know how much CO 2 is produced by the combustion of 4 .0 × 10 12 kg of petroleum. Assume that this petroleum is in the form of octane and is combusted according to the following balanced reaction:

2C 8 H 18 ( L )  + 25O 2 ( g )   16CO 2 ( g )  + 18H 2 ( g )

By assuming that O2 is in excess, determine how many moles of CO 2 are produced by the combustion of 4 .0 × 10 12 kg of C 8 H 18 . This will be the amount of CO 2 produced each year.

b. By knowing that 1 mol of gas occupies 22.4 L, determine the volume occupied by the number of moles of CO 2 gas that you just calculated. This will be the volume of CO 2 produced per year.

c. The volume of CO 2 presently in our atmosphere is approximately 1 .5×10 18 L. By assuming that all CO 2 produced by the combustion of petroleum stays in our atmosphere, how many years will it take to double the amount of CO 2 currently present in the atmosphere from just petroleum combustion?

Interpretation Introduction

Interpretation:

The number of moles of CO2, the volume occupied by the number moles of CO2 gas, and the number of years required to double the amount of CO2 are to be calculated.

Concept Introduction:

Mole is the unit for calculating large quantities of small units, such as atoms and molecules.

Carbon dioxide is a colorless and odorless gas.

A small amount of carbon dioxide is essential for sustaining life on the earth.

Explanation of Solution

a) Number of moles of CO2 are produced by the combustion of 4×1012Kg of C8H18.

The amount of CO2 present in the atmosphere is 0.04% and the world uses 4×1012Kg of petroleum per year.

The reaction is as follows:

2C8H18(l)+25O2(g)16CO2(g)+18H2O(g).

The equation for the reaction of C8H18 with O2 is as follows:

2C8H18(l)+25O2(g)16CO2(g)+18H2O(g)

The mass of C8H18 is converted into grams as follows:

1Kg=1000gThemassoftheC8H18ingrams=4.0×1012×1000g=4.0×1015g

The moles of C8H18 are calculated using the expression as follows:

Moles of C8H18=GivenMassMolecularMass.

Substitute the value of given mass and molecular mass in the above expression.

Moles of C8H18=4.0×1015gC8H18114.2gC8H18=3.5×1013mole.

From the above equation, 2 moles of C8H18 will produce 16 moles of CO2. Therefore, moles of CO2 will be 216 of the moles of C8H18

Still sussing out bartleby?

Check out a sample textbook solution.

See a sample solution

The Solution to Your Study Problems

Bartleby provides explanations to thousands of textbook problems written by our experts, many with advanced degrees!

Get Started

Chapter 9 Solutions

Chemistry In Focus
Show all chapter solutions
add
Ch. 9 - What is the difference between a hot object and a...Ch. 9 - From a molecular standpoint, explain how thermal...Ch. 9 - From a molecular standpoint, explain what heat and...Ch. 9 - List the four sectors of U.S. energy consumption...Ch. 9 - How much energy does the United States consume...Ch. 9 - Explain the first law of thermodynamics and its...Ch. 9 - What is entropy? Why is entropy important?Ch. 9 - Explain the second law of thermodynamics and its...Ch. 9 - What is a perpetual motion machine? Why can such a...Ch. 9 - Approximately how efficient are each of the...Ch. 9 - Define each of the following terms: a. heat b....Ch. 9 - Explain the difference between energy and power.Ch. 9 - What happens to the temperature of the...Ch. 9 - Which temperature scale(s) does not contain...Ch. 9 - What is heat capacity? How is it related to...Ch. 9 - What are our current energy sources and their...Ch. 9 - How long will each of the energy sources in the...Ch. 9 - Why are fossil fuels so named? Where do they come...Ch. 9 - Explain how a fossil-fuel-burning power plant...Ch. 9 - What are the environmental problems associated...Ch. 9 - List the four major components of smog and the...Ch. 9 - What does a catalytic converter do?Ch. 9 - What is the major cause of acid rain?Ch. 9 - Explain how acid rain is formed and its effects on...Ch. 9 - Explain the natural greenhouse effect.Ch. 9 - What would happen to Earths temperature if there...Ch. 9 - What is global warming? Is it occurring? What is...Ch. 9 - What do computer-based climate models predict will...Ch. 9 - How much have CO2 levels increased in the last...Ch. 9 - Which fossil fuel is the worst offender when it...Ch. 9 - Energy Units Perform each of the following...Ch. 9 - A person obtains approximately 2.5103 Calories a...Ch. 9 - A chocolate chip cookie contains about 200 kcal....Ch. 9 - An average person consumes about 2.0103 kcal of...Ch. 9 - Assume that electricity costs 15 cents per...Ch. 9 - Assume that electricity costs 15 cents per...Ch. 9 - Temperature Units Perform each of the following...Ch. 9 - Perform each of the following conversions: a....Ch. 9 - The coldest temperature ever measured in the...Ch. 9 - The warmest temperature ever measured in the...Ch. 9 - Chemical Reactions and Energy Calculate the amount...Ch. 9 - Calculate how many grams of each of the following...Ch. 9 - The useful energy that comes out of an energy...Ch. 9 - A typical 1000-MW electrical generating power...Ch. 9 - Heating the air in a particular house by 10C...Ch. 9 - Heating the water in a 55-gallon water heater...Ch. 9 - Greenhouse Gas Emissions For problem 45, calculate...Ch. 9 - For problem 46, calculate how much CO2 in grams is...Ch. 9 - Calculate the amount of carbon dioxide (in kg)...Ch. 9 - The amount of CO2 in the atmosphere is...Ch. 9 - The second law of thermodynamics has been called...Ch. 9 - You are camping and contemplating placing some hot...Ch. 9 - Some people have criticized the idea that...Ch. 9 - In the 1950s, the United States produced about the...Ch. 9 - The following graph shows U.S. carbon dioxide...

Additional Science Textbook Solutions

Find more solutions based on key concepts
Show solutions add
Which of the following values is found on food labels? Recommended Dietary Allowances Dietary Reference Intakes...

Nutrition: Concepts and Controversies - Standalone book (MindTap Course List)

A taut string has a length of 2.60 m and is fixed at both ends. (a) Find the wavelength of the fundamental mode...

Physics for Scientists and Engineers, Technology Update (No access codes included)

How do well-sorted sediments differ from poorly sorted sediments?

Oceanography: An Invitation To Marine Science, Loose-leaf Versin