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c) Petroleum gas is a fuel that contains propane, C,H. Why does the following equation not represent a standard enthalpy change of combustion? 2C,H+100, → 6CO+ 8H,0 A,H=-4113 kJ mo 2(g) 2(g) l is mainly carbon. It is burned ag

c) Petroleum gas is a fuel that contains propane, C,H. Why does the following equation not represent a standard enthalpy change of combustion? 2C,H+100, → 6CO+ 8H,0 A,H=-4113 kJ mo 2(g) 2(g) l is mainly carbon. It is burned ag

Living By Chemistry: First Edition Textbook
Living By Chemistry: First Edition Textbook
1st Edition
ISBN:9781559539418
Author:Angelica Stacy
Publisher:Angelica Stacy
ChapterU5: Fire: Energy , Thermodynamics, And Oxidation-reduction
SectionU5.12: Over The Hill: Reversing Reactions
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1mol sterred in change Enthalpy Changes enthalpy changes using sta n you find in data books are usually standard enthalpy changes How) S antities shown in the chemical equation, under standard conditions. pletely burned in oxygen, under standard conditions. ndard enthalpy change of neutralisation, AH°, is the enthalpy change when an acid a Pacice Questions ain the terms exothermic and endothermic, giving an example reaction in each case. Daw and label enthalpy profile diagrams for an exothermic and an endothermic reaction. Define standard enthalpy of formation and standard enthalpy of combustion. Exam Questions Oi Hydrogen peroxide, H,O,, can decompose into water and oxygen. 2H,0 → 2H,0 + O AH°=-98 kJ mol- Draw an enthalpy profile diagram for this reaction. Mark on the activation energy, E, and AF a 02 Methanol, CH,OH, when blended with petrol, can be used as a fuel. A H [CH,OH] =-72 a) Write an equation, including state symbols, for the standard enthalpy change of combustion of methanol. b) Write an equation, including state symbols, for the standard enthalpy change of formation of methanol. c) Petroleum gas is a fuel that contains propane, C,H Why does the following equation not represent a standard enthalpy change of combustion? 2C,H + 100→ 6CO+ 8H,0 A,H°=-4113 kJ mo 2(g) 2(g) al is mainly carbon. It is burned as a fuel. A H=-393.5 kJ mol- Write an equation, including state symbols, for the standard enthalpy change of com plain why the standard enthalpy change of formation of carbon dioxide will also w much energy would he More often thaare 00 kP are 10 Fabio heard nermic onesie ease his hot
Transcribed Image Text:1mol sterred in change Enthalpy Changes enthalpy changes using sta n you find in data books are usually standard enthalpy changes How) S antities shown in the chemical equation, under standard conditions. pletely burned in oxygen, under standard conditions. ndard enthalpy change of neutralisation, AH°, is the enthalpy change when an acid a Pacice Questions ain the terms exothermic and endothermic, giving an example reaction in each case. Daw and label enthalpy profile diagrams for an exothermic and an endothermic reaction. Define standard enthalpy of formation and standard enthalpy of combustion. Exam Questions Oi Hydrogen peroxide, H,O,, can decompose into water and oxygen. 2H,0 → 2H,0 + O AH°=-98 kJ mol- Draw an enthalpy profile diagram for this reaction. Mark on the activation energy, E, and AF a 02 Methanol, CH,OH, when blended with petrol, can be used as a fuel. A H [CH,OH] =-72 a) Write an equation, including state symbols, for the standard enthalpy change of combustion of methanol. b) Write an equation, including state symbols, for the standard enthalpy change of formation of methanol. c) Petroleum gas is a fuel that contains propane, C,H Why does the following equation not represent a standard enthalpy change of combustion? 2C,H + 100→ 6CO+ 8H,0 A,H°=-4113 kJ mo 2(g) 2(g) al is mainly carbon. It is burned as a fuel. A H=-393.5 kJ mol- Write an equation, including state symbols, for the standard enthalpy change of com plain why the standard enthalpy change of formation of carbon dioxide will also w much energy would he More often thaare 00 kP are 10 Fabio heard nermic onesie ease his hot
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