Introduction to General, Organic and Biochemistry
11th Edition
ISBN: 9781285869759
Author: Frederick A. Bettelheim, William H. Brown, Mary K. Campbell, Shawn O. Farrell, Omar Torres
Publisher: Cengage Learning
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Chapter 11, Problem 11.61P
Interpretation Introduction
Interpretation:
Interpret the 2,2,4-trimethylpentane or EtOH providing good amount of energy on kcal per mol and kcal per gram basis.
Concept Introduction:
Exothermic reaction is the reaction in which the liberation of energy takes place while in endothermic reaction the consumption of energy takes place. Usually the combustion of
Endothermic reaction having +ve dH value while exothermic reaction having −ve dH value.
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Ethanol, C2H6O, is most often blended with gasoline - usually as a 10 percent mix - to create a fuel called gasohol. Ethanol is a renewable resource and ethanol-blended fuels, like gasohol, appear to burn more efficiently in combustion engines. The heat of combustion of ethanol is 326.7 kcal/mol.The heat of combustion of 2-methylhexane, C7H16, is 1.150×103 kcal/mol. How much energy is released during the complete combustion of 446 grams of 2-methylhexane ??? kcalAssuming the same efficiency, would 446 grams of ethanol provide more, less, or the same amount of energy as 446 grams of 2-methylhexane?
Ethanol, C2H6O, is most often blended with gasoline - usually as a 10 percent mix - to create a fuel called gasohol. Ethanol is a renewable resource and ethanol-blended fuels, like gasohol, appear to burn more efficiently in combustion engines. The heat of combustion of ethanol is 326.7 kcal/mol.The heat of combustion of 2-methylhexane, C7H16, is 1.150×103 kcal/mol. How much energy is released during the complete combustion of 446 grams of 2-methylhexane ?________ kcal
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Ethanol, C2H6O, is most often blended with gasoline - usually as a 10 percent mix - to create a fuel called gasohol. Ethanol is a renewable resource and ethanol-blended fuels, like gasohol, appear to burn more efficiently in combustion engines. The heat of combustion of ethanol is 326.7 kcal/mol.The heat of combustion of 2-methylhexane, C7H16, is 1.150×103 kcal/mol. How much energy is released during the complete combustion of 452 grams of 2-methylhexane ?Assuming the same efficiency, would 452 grams of ethanol provide more, less, or the same amount of energy as 452 grams of 2-methylhexane?
Chapter 11 Solutions
Introduction to General, Organic and Biochemistry
Ch. 11.2 - Prob. 11.1PCh. 11.3 - Prob. 11.2PCh. 11.3 - Prob. 11.3PCh. 11.4 - Problem 11-4 Write the molecular formula and IUPAC...Ch. 11.6 - Problem 11-5 Write the molecular formula and IUPAC...Ch. 11.7 - Prob. 11.6PCh. 11.8 - Prob. 11.7PCh. 11.9 - Prob. 11.8PCh. 11.10 - Prob. 11.9PCh. 11 - Answer true or false. A hydrocarbon is composed...
Ch. 11 - 11-11 Define: Hydrocarbon Alkane Saturated...Ch. 11 - 11-12 Why is it not accurate to describe an...Ch. 11 - 11-13 What is meant by the term line-angle formula...Ch. 11 - Prob. 11.14PCh. 11 - Write the molecular formula for each alkane.Ch. 11 - Answer true or false. Constitutional isomers have...Ch. 11 - Which statements are true about constitutional...Ch. 11 - Prob. 11.18PCh. 11 - Each member of the following set of compounds is...Ch. 11 - Prob. 11.20PCh. 11 - 11-21 In the six following sets, which pairs of...Ch. 11 - Draw line-angle formulas for the nine...Ch. 11 - Answer true or false. The parent name of an alkane...Ch. 11 - Prob. 11.24PCh. 11 - Among the ingredients listed in one commercial...Ch. 11 - Prob. 11.26PCh. 11 - Answer true or false. Cycloalkanes are saturated...Ch. 11 - Prob. 11.28PCh. 11 - Prob. 11.29PCh. 11 - Prob. 11.30PCh. 11 - Prob. 11.31PCh. 11 - 11-32 Calculate the actual C-C-C bond angles in...Ch. 11 - Prob. 11.33PCh. 11 - 11-34 What structural feature of cycloalkanes...Ch. 11 - Prob. 11.35PCh. 11 - 11-36 Name and draw structural formulas for the...Ch. 11 - Name and draw structural formulas for the six...Ch. 11 - 11-38 Why is equatorial methylcyclohexane more...Ch. 11 - Prob. 11.39PCh. 11 - Consider a cyclohexane ring substituted with one...Ch. 11 - Prob. 11.41PCh. 11 - In Problem 11-22, you drew structural formulas for...Ch. 11 - Which unbranched alkane (Table 11-4) has about the...Ch. 11 - Prob. 11.44PCh. 11 - Prob. 11.45PCh. 11 - Prob. 11.46PCh. 11 - Prob. 11.47PCh. 11 - 11-48 How are the boiling points of hydrocarbons...Ch. 11 - Answer true or false. Combustion of alkanes is an...Ch. 11 - 11-50 Write balanced equations for the combustion...Ch. 11 - The heat of combustion of methane, a component of...Ch. 11 - 11-52 Draw structural formulas for these...Ch. 11 - Prob. 11.53PCh. 11 - 11-54 Complete and balance the equation for the...Ch. 11 - Name and draw structural formulas for all pos...Ch. 11 - Prob. 11.56PCh. 11 - Prob. 11.57PCh. 11 - 11-58 (Chemical Connections 11A) How many rings in...Ch. 11 - Prob. 11.59PCh. 11 - Prob. 11.60PCh. 11 - Prob. 11.61PCh. 11 - 11-62(Chemical Connections 11C) What are Freons?...Ch. 11 - 11-63 (Chemical Connections 11C) In what way do...Ch. 11 - (Chemical Connections 11C) What are HFCs and...Ch. 11 - Prob. 11.65PCh. 11 - Prob. 11.66PCh. 11 - Which of the following compounds can exist as...Ch. 11 - Prob. 11.68PCh. 11 - Dodecane, C12H26, is an unbranched alkane Predict...Ch. 11 - Prob. 11.70PCh. 11 - Prob. 11.71PCh. 11 - Prob. 11.72PCh. 11 - As stated in Section 11-9, the wax found in apple...Ch. 11 - Prob. 11.74P
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The heat of combustion of methane, a component of natural gas, is 212 kcal/mol. That of propane, a component of LP gas, is 530 kcal/mol. On a gram- for-gram basis, which hydrocarbon is the better source of heat energy?
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Write out the BALANCED chemical reaction for the complete combustion of propane(C3H8).
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2 C8H18+25…
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