/*! This file is auto-generated */ .wp-block-button__link{color:#fff;background-color:#32373c;border-radius:9999px;box-shadow:none;text-decoration:none;padding:calc(.667em + 2px) calc(1.333em + 2px);font-size:1.125em}.wp-block-file__button{background:#32373c;color:#fff;text-decoration:none} Problem 12 What is a combustion reaction? W... [FREE SOLUTION] | 91影视

91影视

Log out

Learning Materials

Features

Discover

Chapter 7: Problem 12

What is a combustion reaction? Why are they important? Give an example.

Short Answer

Expert verified
A combustion reaction is when a substance reacts with oxygen to release energy; they are important for energy production. An example is the combustion of methane: \( CH_4 + 2O_2 -> CO_2 + 2H_2O + energy \).

Step by step solution

01

Definition of Combustion Reaction

A combustion reaction is a chemical reaction that occurs when a substance reacts with oxygen, releasing energy in the form of heat and light. The general formula for a hydrocarbon fuel combustion reaction can be written as: fuel + oxygen -> carbon dioxide + water + energy.
02

Importance of Combustion Reactions

Combustion reactions are important because they are the primary source of energy for various applications, including powering engines, generating electricity, and providing heat for homes and industries. The energy released during combustion is harnessed to perform work.
03

Example of a Combustion Reaction

An example of a combustion reaction is the burning of methane (CH4), which is a common fuel. The balanced chemical equation for the combustion of methane is: \( CH_4 + 2O_2 -> CO_2 + 2H_2O + energy \).

Unlock Step-by-Step Solutions & Ace Your Exams!

  • Full Textbook Solutions

    Get detailed explanations and key concepts

  • Unlimited Al creation

    Al flashcards, explanations, exams and more...

  • Ads-free access

    To over 500 millions flashcards

  • Money-back guarantee

    We refund you if you fail your exam.

Over 30 million students worldwide already upgrade their learning with 91影视!

Key Concepts

These are the key concepts you need to understand to accurately answer the question.

Chemical Reaction
A chemical reaction is a process where substances, known as reactants, transform into different substances called products. This can involve the breaking and forming of bonds between atoms. A classic example is when hydrogen and oxygen react to form water.

Understanding chemical reactions is fundamental in chemistry because it's how new compounds are created. They are involved in everything from digestion in living organisms to the combustion of fuels that power vehicles.
Energy Release
The term 'energy release' refers to the exothermic process where energy, often in the form of heat or light, is emitted by a system. This often happens during chemical reactions, including combustion, where the energy stored in chemical bonds is released as those bonds are broken and new bonds are formed.

Energy release is a critical component in many aspects of modern life, especially in energy production. Whether it's in the engine of a car or the generation of electricity in power plants, these applications harness this released energy to accomplish work.
Oxidation
Oxidation is a specific type of chemical reaction that involves the transfer of electrons from one substance to another. In terms of combustion, oxidation refers to the process where the reactant (usually a fuel) combines with oxygen.

In contexts outside of combustion, oxidation can occur without the presence of oxygen. For instance, when iron rusts, it undergoes oxidation by reacting with moisture in the air, leading to the formation of iron oxide.
Hydrocarbon Combustion
Hydrocarbon combustion is a specific type of oxidation reaction where a hydrocarbon (a compound consisting only of carbon and hydrogen) reacts with oxygen to form carbon dioxide, water, and release energy.

Hydrocarbon fuels are widely used because they are energy-dense and readily available. The oxidation of these compounds in a controlled manner powers internal combustion engines in cars, planes, and many industrial processes.
Balanced Chemical Equation
A balanced chemical equation is one where the number of atoms for each element is the same on both the reactant and product sides of the equation. This is crucial because it reflects the law of conservation of mass, which states that matter cannot be created or destroyed in a chemical reaction.

To balance an equation, coefficients are placed in front of the chemical formulas to ensure that the number of atoms of each element is equal on both sides. Balancing chemical equations is a fundamental skill in chemistry that ensures we can accurately describe and predict the outcomes of chemical reactions.

One App. One Place for Learning.

All the tools & learning materials you need for study success - in one app.

Get started for free

Most popular questions from this chapter

Many home barbeques are fueled with propane gas (C3H8). What mass of carbon dioxide (in kg) forms upon the complete combustion of 18.9 L of propane (approximate contents of one 5-gallon tank)? Assume that the density of the liquid propane in the tank is 0.621 g>mL. (Hint: Begin by writing a balanced equation for the combustion reaction.)

Classify each of the listed properties of isopropyl alcohol (also known as rubbing alcohol) as physical or chemical. a. colorless b. flammable c. liquid at room temperature d. density = 0.79 g>mL e. mixes with water

Calculate the theoretical yield of the product (in moles) for each initial amount of reactants. Ti(s) + 2 Cl2(g)-TiCl4(s) a. 4 mol Ti, 4 mol Cl2 b. 7 mol Ti, 17 mol Cl2 c. 12.4 mol Ti, 18.8 mol Cl2

Classify each change as physical or chemical. a. Sugar burns when heated on a skillet. b. Sugar dissolves in water. c. A platinum ring becomes dull because of continued abrasion. d. A silver surface becomes tarnished after exposure to air for a long period of time.

Calculate the theoretical yield of product (in moles) for each initial amount of reactants. 2 Mn(s) + 2 O2(g)-2 MnO2(s) a. 3 mol Mn, 3 mol O2 b. 4 mol Mn, 7 mol O2 c. 27.5 mol Mn, 43.8 mol O2
See all solutions

Recommended explanations on Chemistry Textbooks

Organic Chemistry

Read Explanation

Kinetics

Read Explanation

The Earths Atmosphere

Read Explanation

Chemical Analysis

Read Explanation

Ionic and Molecular Compounds

Read Explanation

Making Measurements

Read Explanation
View all explanations

What do you think about this solution?

We value your feedback to improve our textbook solutions.

Study anywhere. Anytime. Across all devices.