E4c. Please calculate AHOn (the standard enthalpy of reaction) of reaction (5). CH&Cg)+202(g) CO2(g)+ 2H20(g) AHOn-802.34 kJ (1) TX1 -136.98 kJ (2) C2H6(g) AHn C2H.(g) + H2(g) TIn 02(g) +2H2(g) 2H20(g) AHn=-483.64 kJ (3) Txn 4C02(g) + 6H20(g) AHn = -2855.56 kJ (4) 2C2H6(g) +702(g) H2(g) + C2H6(g) (5) 2CH4 (g) MacBook Air BFS II 000 F2 F4 F5 F6 F7 F8 F9 F10 & 3 5 6 7 9 CO A4 12

E4c. Please calculate AHOn (the standard enthalpy of reaction) of reaction (5). CH&Cg)+202(g) CO2(g)+ 2H20(g) AHOn-802.34 kJ (1) TX1 -136.98 kJ (2) C2H6(g) AHn C2H.(g) + H2(g) TIn 02(g) +2H2(g) 2H20(g) AHn=-483.64 kJ (3) Txn 4C02(g) + 6H20(g) AHn = -2855.56 kJ (4) 2C2H6(g) +702(g) H2(g) + C2H6(g) (5) 2CH4 (g) MacBook Air BFS II 000 F2 F4 F5 F6 F7 F8 F9 F10 & 3 5 6 7 9 CO A4 12

Chemistry & Chemical Reactivity

10th Edition

ISBN:9781337399074

Author:John C. Kotz, Paul M. Treichel, John Townsend, David Treichel

Publisher:John C. Kotz, Paul M. Treichel, John Townsend, David Treichel

Chapter5: Principles Of Chemical Reactivity: Energy And Chemical Reactions

Section5.7: Enthalpy Calculations

Problem 5.10CYU: Calculate the standard enthalpy of combustion for benzene, C6H6. C6H6() + 15/2 O2(g) 6 CO2(g) + 3...

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When one mol of KOH is neutralized by sulfuric acid, q=56 kJ. (This is called the heat of neutralization.) At 23.7C, 25.0 mL of 0.475 M H2SO4 is neutralized by 0.613 M KOH in a coffee-cup calorimeter. Assume that the specific heat of all solutions is 4.18J/gC, that the density of all solutions is 1.00 g/mL, and that volumes are additive. (a) How many mL of KOH is required to neutralize H2SO4? (b) What is the final temperature of the solution?
A 21.3-mL sample of 0.977 M NaOH is mixed with 29.5 mL of 0.918 M HCl in a coffee-cup calorimeter (see Section 6.6 of your text for a description of a coffee-cup calorimeter). The enthalpy of the reaction, written with the lowest whole-number coefficients, is 55.8 kJ. Both solutions are at 19.6C prior to mixing and reacting. What is the final temperature of the reaction mixture? When solving this problem, assume that no heat is lost from the calorimeter to the surroundings, the density of all solutions is 1.00 g/mL, the specific heat of all solutions is the same as that of water, and volumes are additive.
The enthalpy of combustion of diamond is -395.4 kJ/mol. C s, dia O2 g CO2 g Determine the fH of C s, dia.
Benzoic acid, C6H5COOH, is a common standard used in bomb calorimeters, which maintain a constant volume. If 1.20 g of benzoic acid gives off 31, 723 J of energy when burned in the presence of excess oxygen and in a water bath having a temperature of 24.6 C, calculate q, w, H, and U for the reaction.
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