Homework Answers
Enthalpy of reaction is given by the difference of Bond enthalpies of the reactants and products.Add all the enthalpies of the bond of the products and then substract it from bond enthalpies of all the bonds present in the reactants.
Using average bond enthalpies (linked above), estimate the enthalpy change for the following reaction: 2CO(g) +...
Using average bond enthalpies (linked above), estimate the enthalpy change for the following reaction: 2CO(g) + 2NO(g)2CO2(g) + N2(g) kJ Bond Bond Energy (kJ/mol) C=C 602 H-H 436 C-H 413 C-C 346 Using average bond enthalpies (linked above), estimate the enthalpy change for the following reaction: I2(g) + Cl2(g)2ICl(g) kJ Using the values of bond energy from the table above, estimate the enthalpy change for the following reaction: C2H4(g) + H2(g) C2H6(g) kJ
Using the table of average bond enthalpies, what is the ∆H for the following gas phase...
Using the table of average bond enthalpies, what is the ∆H for the following gas phase reaction (in kJ/mol)? Bond Ave. Bond Enthalpy (kJ/mol) C – C 348 C = C 614 C ≡ C 839 C – H 413 C – Br 276 H – Br 366 H – H 436 a - 304 b + 304 c - 2134 d - 57 e + 3292
Part A. Find the average enthalpy of the PF bond in PF5(g) from the following standard...
Part A. Find the average enthalpy of the PF bond in PF5(g) from
the following standard molar enthalpies of formation (in kJ/mol):
PF5(g) (–1595), P(g) (315), F(g) (79).
Part B.
Using the bond energies from the table below estimate AH for the following reaction C2H2(g) + H2(g) → C2H4(g) Bond Bond energy [kJ/mol] [C-H 413 H-H 436 |C-C 348 C=C 614 csc 839
(2). Consider benzene in the gas phase, CaH&(g). Use the heat of formation, AH, values below...
(2). Consider benzene in the gas phase, CaH&(g). Use the heat of formation, AH, values below to answer the questions. (20 points) дня (/mо) Substance H(g) C(g) С.Н.A(9) 217.94 718.4 82.9 (a) What is the standard enthalpy change for the reaction that represents breaking all the bonds in gaseous benzene, C.Ha(g)? (6 points) (b) What is the chemical equation for the reaction that corresponds to breaking just the carbon-carbon bonds in gaseous benzene, CH6(? Indicate the phase of each species...
Question 1 - Enthalpy of Combustion - Level 3 0/2 points What is the enthalpy change...
Question 1 - Enthalpy of Combustion - Level 3 0/2 points What is the enthalpy change when 1.0 mol of propane, C3H8(8), is combusted? How about if the gas in the balloon is combusted? Start by writing a balanced equation for the combustion reaction of your given gas. Then use the bond energy values on your equation sheet to answer this question. ΔΗ, comb -2221 kJ/molgus AH xn for the balloon 1 kJ Evaluate Your estimated enthalpy of combustion is...
(2). Consider benzene in the gas phase, C&H(g). Use the heat of formation, AH, values below to answer the questions...
(2). Consider benzene in the gas phase, C&H(g). Use the heat of formation, AH, values below to answer the questions. (20 points дня (кJ/mo) Substance H(g) C(g) 217.94 718.4 82.9 (8°HӘ (a) What is the standard enthalpy change for the reaction that represents breaking all the bonds in gaseous benzene, CHg)? (6 points) (b) What is the chemical equation for the reaction that corresponds to breaking just the carbon-carbon bonds in gaseous benzene, CeH6()? Indicate the phase of each species...
XSeaFCh triiS course Use the References to access important values if needed for this question. The...
XSeaFCh triiS course Use the References to access important values if needed for this question. The hydrocarbon acetylene has the structure H--С EC_H Use the average bond enthalpies from the table below to estimate the change in enthalpy AH° for the reaction Mupd bond kJ/mol bond kJ/mol s (81.92 Autosaved at 7:50 PM Back Next bond kJ/mol C-H 413 С-С 348 CC 615 C C 812 bond kJ/mol C-O 351 C=O 728 O-H 463 o--о 498 question attempts remaining
Constants Periodic Table Consider the reaction: H2(g) +12(s) + 2HI(g) Average Bond Enthalpies (kJ/mol) Part A...
Constants Periodic Table Consider the reaction: H2(g) +12(s) + 2HI(g) Average Bond Enthalpies (kJ/mol) Part A Use the bond enthalpies in the table to estimate AH for this reaction, ignoring the fact that iodine is in the solid state. Express your answer in kilojoules to two significant figures. IVO AQ R o 21 ? C-H 413 N-H 391 0-H 463 F-F 155 C-C 348 N-N 163 0-0 146 C=C 614 N-O 201 0=0 495 Cl-F 253 C-N 293 N-F 272...
a. b. For b is this table below: Bond Bond Energy, D (kJ/mol) C=0 1072 C1-C1...
a.
b. For b is this table below:
Bond Bond Energy, D (kJ/mol) C=0 1072 C1-C1 242 C-CI 339 C=0 732 Using the values of bond energy from the table above, estimate the enthalpy change for the following reaction: CO(g) + Cl2(9)—>COC12(E) DkJ Using average bond enthalpies (linked above), estimate the enthalpy change for the following reaction: H2(g) + 12(8)—2HI(g) kJ Submit Answer Retry Entire Group 6 more group attempts remaining Single Bonds H C N O F Si P...
Question Three (6 marks) The average bond energies (in kJ mol) are given in the table...
Question Three (6 marks) The average bond energies (in kJ mol) are given in the table below. ?-? 351 | ?-? 610 0-0 152 | ?-? 496 | C-0365 | ?-? 740 | 0-11460 | ??? 840 | H-H 436 | CHI 413 1. Explain why bond energy values are always positive. Place the three bonds, C-H, H-Hand O-H, in the order of increasing bond length (shortest first) 2. 3. Calculate the enthalpy change of the reaction below using the...
Part A. Find the average enthalpy of the PF bond in PF5(g) from
the following standard molar enthalpies of formation (in kJ/mol):
PF5(g) (–1595), P(g) (315), F(g) (79).
Part B.
Using the bond energies from the table below estimate AH for the following reaction C2H2(g) + H2(g) → C2H4(g) Bond Bond energy [kJ/mol] [C-H 413 H-H 436 |C-C 348 C=C 614 csc 839
(2). Consider benzene in the gas phase, CaH&(g). Use the heat of formation, AH, values below to answer the questions. (20 points) дня (/mо) Substance H(g) C(g) С.Н.A(9) 217.94 718.4 82.9 (a) What is the standard enthalpy change for the reaction that represents breaking all the bonds in gaseous benzene, C.Ha(g)? (6 points) (b) What is the chemical equation for the reaction that corresponds to breaking just the carbon-carbon bonds in gaseous benzene, CH6(? Indicate the phase of each species...
Question 1 - Enthalpy of Combustion - Level 3 0/2 points What is the enthalpy change when 1.0 mol of propane, C3H8(8), is combusted? How about if the gas in the balloon is combusted? Start by writing a balanced equation for the combustion reaction of your given gas. Then use the bond energy values on your equation sheet to answer this question. ΔΗ, comb -2221 kJ/molgus AH xn for the balloon 1 kJ Evaluate Your estimated enthalpy of combustion is...
(2). Consider benzene in the gas phase, C&H(g). Use the heat of formation, AH, values below to answer the questions. (20 points дня (кJ/mo) Substance H(g) C(g) 217.94 718.4 82.9 (8°HӘ (a) What is the standard enthalpy change for the reaction that represents breaking all the bonds in gaseous benzene, CHg)? (6 points) (b) What is the chemical equation for the reaction that corresponds to breaking just the carbon-carbon bonds in gaseous benzene, CeH6()? Indicate the phase of each species...
XSeaFCh triiS course Use the References to access important values if needed for this question. The hydrocarbon acetylene has the structure H--С EC_H Use the average bond enthalpies from the table below to estimate the change in enthalpy AH° for the reaction Mupd bond kJ/mol bond kJ/mol s (81.92 Autosaved at 7:50 PM Back Next bond kJ/mol C-H 413 С-С 348 CC 615 C C 812 bond kJ/mol C-O 351 C=O 728 O-H 463 o--о 498 question attempts remaining
Constants Periodic Table Consider the reaction: H2(g) +12(s) + 2HI(g) Average Bond Enthalpies (kJ/mol) Part A Use the bond enthalpies in the table to estimate AH for this reaction, ignoring the fact that iodine is in the solid state. Express your answer in kilojoules to two significant figures. IVO AQ R o 21 ? C-H 413 N-H 391 0-H 463 F-F 155 C-C 348 N-N 163 0-0 146 C=C 614 N-O 201 0=0 495 Cl-F 253 C-N 293 N-F 272...
a.
b. For b is this table below:
Bond Bond Energy, D (kJ/mol) C=0 1072 C1-C1 242 C-CI 339 C=0 732 Using the values of bond energy from the table above, estimate the enthalpy change for the following reaction: CO(g) + Cl2(9)—>COC12(E) DkJ Using average bond enthalpies (linked above), estimate the enthalpy change for the following reaction: H2(g) + 12(8)—2HI(g) kJ Submit Answer Retry Entire Group 6 more group attempts remaining Single Bonds H C N O F Si P...
Question Three (6 marks) The average bond energies (in kJ mol) are given in the table below. ?-? 351 | ?-? 610 0-0 152 | ?-? 496 | C-0365 | ?-? 740 | 0-11460 | ??? 840 | H-H 436 | CHI 413 1. Explain why bond energy values are always positive. Place the three bonds, C-H, H-Hand O-H, in the order of increasing bond length (shortest first) 2. 3. Calculate the enthalpy change of the reaction below using the...
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