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 combustion of one mole of ethanol releases 326.7 kcal of energy. The combustion of one mole of 2-methylheptane, C8H18, releases 1.306 × 10³ kcal of energy. How much energy is released during the complete combustion of 405 grams of 2- methylheptane? kcal Assuming the same efficiency, would 405 grams of ethanol provide more, less, or the same amount of energy as 405 grams of 2-methylheptane? ✓ more less the same amount Retry Entire Group 9 more group attempts remaining

Q: Ethanol, C₂H6O, is most often blended with gasoline - usually as a 10 percent mix - to create a fuel…

A: In a combustion reaction of an organic compound, it reacts with oxygen to form carbon dioxide and…

Q: If the heat of combustion for a specific compound is −1040.0 kJ/mol and its molar mass is 70.57…

A: The given heat of combustion of compound is -1040.0 kJ/mol. The negative sign suggests that heat is…

Q: The complete combustion of octane occurs according to the following balanced equation: 2 C3H18(1) +…

A: What additional product produced by the incomplete combustion ?

Q: Ethanol, C₂H6 O, is most often blended with gasoline - usually as a 10 percent mix - to create a…

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Q: The heat of combustion of glucose, C6H12O6, is 670 kcal/mol. The heat of combustion of ethanol,…

A: The heat of combustion of glucose, C6H12O6, is = 670 kcal/mol The heat of combustion of ethanol,…

Q: What is the total number of moles of O2(g) required for the complete combustion of 1.5 moles of…

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Q: If the heat of combustion for a specific compound is −1370.0 kJ/mol and its molar mass is 47.85…

A: Given, Heat of combustion for specific compound , Q= -1370 kJmol Molar mass, M = 47.85 gmol Required…

Q: Write a balanced equation for the combustion of liquid methyl alcohol (CH3OH).

A: Combustion of liquid methyl alcohol CH3OH : 2 moles of  liquid methyl alcohol (CH3OH) reacts with 3…

Q: What mass of octane (C8H18) must be burned in order to release 5340 kJ of heat? DHcomb = – 5471…

A: Heat of reaction or enthalpy change ∆Hrxn is defined as heat released and absorbed during a…

Q: Ethanol, C₂H6 O, is most often blended with gasoline - usually as a 10 percent mix - to create a…

A: Mass of 1 mole of compound = Molar mass  Molar mass of a compound = Sum of Molar mass of each of its…

Q: They are all part of one question. Ethanol, C2H6O, is most often blended with gasoline - usually as…

A: Since heat of combustion is the amount of energy released when 1 mole of reactant is com-busting…

Q: Ethanol can be used as a fuel source in an alcohol lamp. The formula for ethanol is C2H5OH. Write…

A: Given , Ethanol is used as fuel source in alcohol lamp .

Q: balanced equation for the burning of butane (C4H10)

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Q: Following is the equation for the combustion of acetone: 2 C3H6O (g) + 8 O2 (g) → 6 H2O (g) + 6 CO2…

A: In this equation, we will determine how much energy will give off by combustion of 4.5mol of…

Q: Write and balance the equation for the complete combustion of heptane, C₂H₁6. Phase symbols and…

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Q: When the reaction for making biodiesel occurs, two layers are formed: biodiesel and glycerol. In…

A: The reaction of higher fats/oil with sodium hydroxide in methanol solvent produces the biodiesel and…

Q: Ethanol, C2H6O, is most often blended with gasoline - usually as a 10 percent mix - to create a fuel…

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Q: It is interesting to compare the “fuel value” of a hydrocarbonin a hypothetical world where oxygen…

A: If we have to find which reaction is more exothermic we can do it by finding the deltaH value for…

Q: Ethanol, C2H6O, is most often blended with gasoline - usually as a 10 percent mix - to create a fuel…

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Q: If the complete combustion of an unknown  mass of ethylene produces 25.0 g of CO2, what mass of…

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Q: What mass of water(grams) can be obtained from the complete combustion of 50.0g of methane according…

A: According to the stoichiometry of the given reaction, 1 moles of methane produces 2 moles of water…

Q: Ethanol, C2H6O, is most often blended with gasoline - usually as a 10 percent mix - to create a fuel…

A: Given: Heat of combustion of ethanol =  326.7 kcal/mol. Mass of 2-Methylhexane = 446 grams Molar…

Q: cigarette lighters burn butane, C4H10. write a balanced equation, assuming complete combustion, that…

A: Combustion reaction is a type of reaction when a particular substance is burnt in presence of oxygen…

Q: Which of the following are combustion reactions? 1) CH4 (g) + O2 (g) → CO2 (g) + H2O (1) 2) CaO (s)…

A: Combustion reaction is a reaction in which the substance reacts only with oxygen to convert all the…

Q: Ethanol, C2H6O, is most often blended with gasoline - usually as a 10 percent mix - to create a fuel…

A: Since heat of combustion is the amount of energy released when 1 mole of reactant is com-busting…

Q: C2H6O, is most often blended with gasoline - usually as a 10 percent mix - to create a fuel called…

A: When one mole of a compound is burned completely in presence of oxygen, then the heat released…

Q: chemist will use a sample of 30 g of ethanol (CH3CH2OH) in an experiment. In one to two sentences,…

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Q: Ethanol, C,H0, is most often blended with gasoline - usually as a 10 percent mix - to create a fuel…

A: Heat of Combustion of 2 methyl heptane is  =1.306 × 103  kcal mol-1  ,  that means on complete…

Q: Given that: CH4 + 2O2 → CO2 + 2H2O, how many moles of water are produced in the complete combustion…

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Q: Choose the reaction that represents the combustion of C6H1202. C6H12O2(1) + 8 O2(g) →6 CO2(g) + 6…

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Q: Choose the reaction that represents the combustion of C 6H 12O 2.     C6H12O2(l) + 8 O2(g) → 6…

A: Combustion reaction can be described as a chemical reaction between the substances with oxygen gas…

Q: Complete and balance the complete combustion of octane (C8H18)

A: Octane is an alkane with the molecular formula C8.H18, which has 8 carbons and 18 hydrogen…

Q: When CH4(g) reacts with H2O(g) to form H2(g) and CO(g) , 49.2 kcal of energy are absorbed for each…

A: The reactants are CH4 (g) and H2O (g)  And the products are H2 (g) and CO (g)  hence the reaction…

Q: Vanillin is a natural constituent of vanilla that is also manufactured for use in artificial vanilla…

A: Given the mass of vanillin taken for combustion = 1.013 g Since the temperature of the calorimeter…

Q: balanced equation

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Q: When NO(g) reacts with O2 (g) according to the following reaction, 57.1 kJ of energy are evolved for…

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Q: es about 21 million barrels of oil per day. The world used about 86 million barrels of oil per day.…

A: The volume of gasoline=86×106barrel×42gallonbarrel×3.79Lgallon    as 3.79L is 1 gallon=13689.48×106…

Thermochemistry

Thermochemistry can be considered as a branch of thermodynamics that deals with the connections between warmth, work, and various types of energy, formed because of different synthetic and actual cycles. Thermochemistry describes the energy changes that occur as a result of reactions or chemical changes in a substance.    

Exergonic Reaction

The term exergonic is derived from the Greek word in which ‘ergon’ means work and exergonic means ‘work outside’. Exergonic reactions releases work energy. Exergonic reactions are different from exothermic reactions, the one that releases only heat energy during the course of the reaction. So, exothermic reaction is one type of exergonic reaction. Exergonic reaction releases work energy in different forms like heat, light or sound. For example, a glow stick releases light making that an exergonic reaction and not an exothermic reaction since no heat is released. Even endothermic reactions at very high temperature are exergonic.