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In Chapter 3, we discussed the conversion of biomass into biofuels. One important area of research associated with biofuels is the identification and development of suitable catalysts to increase the rate at which fuels can be produced. Do a web search to find an article describing biofuel catalysts. Then, write one or two sentences describing the reactions being catalyzed, and identify the catalyst as homogeneous or heterogeneous.

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Chemistry for Engineering Students

3rd Edition
Lawrence S. Brown + 1 other
Publisher: Cengage Learning
ISBN: 9781285199023

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Section
BuyFindarrow_forward

Chemistry for Engineering Students

3rd Edition
Lawrence S. Brown + 1 other
Publisher: Cengage Learning
ISBN: 9781285199023
Chapter 11, Problem 11.79PAE
Textbook Problem
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In Chapter 3, we discussed the conversion of biomass into biofuels. One important area of research associated with biofuels is the identification and development of suitable catalysts to increase the rate at which fuels can be produced. Do a web search to find an article describing biofuel catalysts. Then, write one or two sentences describing the reactions being catalyzed, and identify the catalyst as homogeneous or heterogeneous.

Interpretation Introduction

Interpretation:

Referring to an article on bio-fuel catalysts, one or two sentences should be written about the reactions being catalyzed and the catalyst should be recognized as homogeneous or heterogeneous.

Concept introduction:

Biofuels are fuels derived from the biological sources in the form of liquids or gases.

A catalyst speeds up a reaction by providing an alternative low activation energy pathway for a reaction.

Explanation of Solution

Greenhouse emission can be reduced by the production and use of biodiesel. Base-catalyzed homogeneous transesterification of oils is used in the production of biodiesel at commercial scale...

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Chapter 11 Solutions

Chemistry for Engineering Students
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In the...Ch. 11 - In the description of the candle in Figure 11.2,...Ch. 11 - The reaction for the Haber process, the industrial...Ch. 11 - 11.17 Ammonia can react with oxygen to produce...Ch. 11 - The following data were obtained in the...Ch. 11 - A gas, AB, decomposes and the volume of B?...Ch. 11 - Experimental data are listed here for the reaction...Ch. 11 - Azomethane, CH3NNCH3, is not a stable compound,...Ch. 11 - Which of the following would be likely to have a...Ch. 11 - A reaction has the experimental rate equation Rate...Ch. 11 - Second-order rate constants used in modeling...Ch. 11 - For each of the rate laws below, what is the order...Ch. 11 - 11.26 The reaction of C(Xg) with NO2(g) is second...Ch. 11 - 11.27 Show that if the units of rate are mol L_1...Ch. 11 - One reaction that destroys O} molecules in the...Ch. 11 - The hypothetical reaction, A + B —*C, has the rate...Ch. 11 - The rate of the decomposition of hydrogen...Ch. 11 - 11.31 Give the order with respect to each reactant...Ch. 11 - 11.32 The following experimental data were...Ch. 11 - The following experimental data were obtained for...Ch. 11 - 11.34 Rate data were obtained at 25°C for the...Ch. 11 - 11.35 For the reaction 2 NO(g) + 2 H?(g) — N,(g) +...Ch. 11 - The reaction NO(g) + O,(g) — NO,(g) + 0(g) plays a...Ch. 11 - In a heterogeneous system such as wood burning in...Ch. 11 - In wheat-growing areas, such as the plains of the...Ch. 11 - The decomposition of N2O5 in solution in carbon...Ch. 11 - In Exercise 11.39, if the initial concentration of...Ch. 11 - 11.41 For a drug to be effective in treating an...Ch. 11 - Amoxicillin is an antibiotic packaged as a powder....Ch. 11 - As with any drug, aspirin (acetylsalicylic acid)...Ch. 11 - 11.44 A possible reaction for the degradation of...Ch. 11 - The initial concentration of the reactant in a...Ch. 11 - A substance undergoes first-order decomposition....Ch. 11 - 11.47 Show that the half-life of a second-order...Ch. 11 - 11.48 The following data were collected for the...Ch. 11 - The rate of photodecomposition of the herbicide...Ch. 11 - The rate of decomposition of SO?C12 according to...Ch. 11 - 11.51 Peroxyacetyl nitrate (PAN) has the chemical...Ch. 11 - The following series of pictures represents the...Ch. 11 - Hydrogen peroxide (H20i) decomposes into water and...Ch. 11 - use the kineticmolecular theory to explain why an...Ch. 11 - The activation energy for the reaction in which...Ch. 11 - The labels on most pharmaceuticals state that the...Ch. 11 - The following rate constants were obtained in an...Ch. 11 - The table below presents measured rate constants...Ch. 11 - The table below presents rate constants measured...Ch. 11 - Many reactions occur in the formation of...Ch. 11 - Bacteria cause milk to go sour by generating...Ch. 11 - Define the term intermediate in the context of...Ch. 11 - Can a reaction mechanism ever be proven correct?...Ch. 11 - 11.60 What is the rate law tor each of the...Ch. 11 - Describe how the Chapman cycle is a reaction...Ch. 11 - What are the reaction intermediates in the Chapman...Ch. 11 - Propane is used as a household fuel in areas where...Ch. 11 - Five people are responsible for cleaning up after...Ch. 11 - The following mechanism is proposed for a...Ch. 11 - 11.64 HBr is oxidized in the following reaction: 4...Ch. 11 - The reaction of NO?(g) and C0(g) is thought to...Ch. 11 - If a textbook defined a catalyst as "a substance...Ch. 11 - The word catalyst has been adopted outside of...Ch. 11 - In the process by which CFCs contribute to the...Ch. 11 - What distinguishes homogeneous and heterogeneous...Ch. 11 - define the terms adsorbed and desorbed. Do the...Ch. 11 - Based on the kinetic theory of matter, what would...Ch. 11 - Draw a hypothetical activation energy diagram for...Ch. 11 - In Chapter 3, we discussed the conversion of...Ch. 11 - The label on a bottle of 3% (by volume) hydrogen...Ch. 11 - Why is smog appropriately labeled photochemical...Ch. 11 - When oxygen molecules, O2, react with oxygen atoms...Ch. 11 - What is a VOC? What role do VOCs play in...Ch. 11 - Why does the formation of ozone in smog depend on...Ch. 11 - Many urban centers in North America do not meet...Ch. 11 - Ozone is not stable at pressures typically found...Ch. 11 - Why do ozone concentrations lag in time relative...Ch. 11 - Reducing ozone formation in photochemical smog...Ch. 11 - Find a website that tells you whether you live in...Ch. 11 - Use the web to find out what it means if the U.S....Ch. 11 - Western Michigan can experience higher than normal...Ch. 11 - Along the Front Range of Colorado, the greatest...Ch. 11 - According to an article published in 1966 in the...Ch. 11 - 11.92 In the previous problem, the reaction to...Ch. 11 - 11.93 On a particular day, the ozone level in...Ch. 11 - 11.94 The EPA’s 8-hour ozone standard for...Ch. 11 - The following is a thought experiment. Imagine...Ch. 11 - The following statements relate to the reaction...Ch. 11 - The Haber process, which produces ammonia from...Ch. 11 - Experiments show that the reaction of nitrogen...Ch. 11 - Substances that poison a catalyst pose a major...Ch. 11 - 11.100 Chemical engineering design often uses mol%...Ch. 11 - 11.101 The flashing of fireflies is the result of...Ch. 11 - 11.102 Suppose that you are studying a reaction...Ch. 11 - 11.103 You measure an archeological specimen and...Ch. 11 - 11.104 At room temperature, it takes about 3 days...Ch. 11 - 11.105 You are designing a seif-heating food...Ch. 11 - 11.106 Use the web to look up the rates of...Ch. 11 - 11.1047 Fluorine often reacts explosively. What...Ch. 11 - 11.108 In Chapter 4, we noted that compressibility...Ch. 11 - 11.109 A free radical is often used as a catalyst...Ch. 11 - When formic acid is heated, it decomposes to...

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