From the following data, calculate the average bond energy for the N-H bond NH3(g) ? NH2(g)...
NH3(g) ? NH2(g) + H(g) ?H° = 435 kJ
NH2(g) ? NH(g) + H(g) ?H° = 381 kJ
NH(g) ? N(g) + H(g) ?H° = 360 kJ
Homework Answers
NH2(g) ----> NH(g) + H(g) ; dH'' = 381 kJ ---(2)
NH(g) -----> N(g) + H(g) ; dH''' = 360 kJ ---(3)
average bond energy for the N-H bond is = ( dH' + dH" + dH"' ) / 3
= ( 435+381+360) / 3
= 392 KJ
Add Answer to:
From the following data, calculate the average bond energy for the N-H bond NH3(g) ? NH2(g)...
The average C - H bond energy in CH4 is 415 kJ / mol. Use the following data to calculate the average C - H bond energ...
The average C - H bond energy in CH4 is 415 kJ / mol. Use the following data to calculate the average C - H bond energy in ethane ( C2H6;C - C bond ) , in ethane ( C2H4;C C bond ) , and in ethyne ( C2H2;C C bond ) . C2H6 ( g ) + H2 ( g ) rightarrow 2CH4 ( g ) delta H*rxn = - 65.07 kj / mol C2H4 ( g ) +...
12. Based on the following data, what is the CI-CI bond energy? H2(g) + Cl2(g) ?...
12. Based on the following data, what is the CI-CI bond energy? H2(g) + Cl2(g) ? HCI(g); ?.? =-92.31 klimol-rxn Bond H-H H-CI Bond Energy (kJ/mol) 435 428 a. 432 kJ/mol b. 236 kJ/mol c. -236 kJ/mol d. -421 kJ/mol e. 421 kJ/mol 12.
Calculate ΔH ° in kJ / mol for the reaction: NH3 (g) + Cl2 (g) → NH2Cl + HCl (g) based on the energy of tenons that brea...
Calculate ΔH ° in kJ / mol for the reaction: NH3 (g) + Cl2 (g) → NH2Cl + HCl (g) based on the energy of tenons that break and form in the reaction. The bond enthalpies of the following compounds are given: N-H (389), Cl-Cl (243), N-Cl (201), and H-Cl (431) in kJ / mol
1) For the following balanced reaction: 3H2(g) + 1 N2(g) → 2 NH3(g) a) Calculate the...
1) For the following balanced reaction: 3H2(g) + 1 N2(g) → 2 NH3(g) a) Calculate the heat of reaction (AHRXN) using AH from Table 1 b) calculate the heat of reaction (AHRXN) using Bond Energies from Table 2 c) Is the reaction endothermic or exothermic? Explain based upon your results from part a and b. 2) Calculate the energy required in Joules to heat 275.5 g of ice at -40.0°C to water at 60.0°C. 3) For blue light with an...
The three species NH2-, NH3 and NH4+ have H-N-H bond angles of 105°, 107° and 109°,...
The three species NH2-, NH3 and NH4+ have H-N-H bond angles of 105°, 107° and 109°, respectively. a. Draw Lewis diagrams for each species. [3 marks] b. Explain the variation in bond angles. [3 marks]
1. a. Use the bond energy data provided to calculate AH.. for the following reaction. H-H...
1. a. Use the bond energy data provided to calculate AH.. for the following reaction. H-H + Cl-Cl → 2 H-CI Bond Bond Energy H-H 436 kJ/mol Cl-CI 243 kJ/mol H-CI 431 kJ/mol b. Based on your answer to part a, is the reaction an exothermic reaction or an endothermic reaction? Provide a brief explanation to support you choice of answer. An endothermic reaction occurs in a cylinder with initial volume of 1 L. 5 kJ of heat is transferred...
Ammonia (NH3) is a covalently bonded molecule, made up of three N-H bonds. For this question,...
Ammonia (NH3) is a covalently bonded molecule, made up of three N-H bonds. For this question, you should use the following values: H-N bond energy = 388 kJ mol-1 Atomic mass of nitrogen =14.007 g mol-1 Atomic mass of hydrogen =1.008 g mol-1 (a) Calculate the molecular mass of NH3 . Give your answer in g mol-1 to three significant figures. (2 marks) (b) Calculate the number of moles in 76 grammes (g) of NH3 . Give your answer to...
5. Methanol gas combustion is represented with the following reaction 2 H3C-O-H(g) + 3 0=0(g) 20=C=O(g)...
5. Methanol gas combustion is represented with the following reaction 2 H3C-O-H(g) + 3 0=0(g) 20=C=O(g) + 4H-O-H(g) Calculate the AH x using the average bond dissociation energies from the table below, for 1 mole of methanol. Bond Energy kJ/mol Bond Energy kJ/mol Bond Energy kJ/mol Bond Bond 436 347 414 611 389 Bond C-C Сс Cc C-N CEN C-o H-H HC H- N H-O HS HF H-C1 HBr H- 837 305 615 891 8 565 163 418 946 222...
The enthalpy change for the following reaction is 95.4 kJ. Using bond energies, estimate the N-H...
The enthalpy change for the following reaction is 95.4 kJ. Using bond energies, estimate the N-H bond energy in N2H4(g). N2(g) + 2H2(g) N2H4(g) kJ/mol The enthalpy change for the following reaction is -92.2 kJ. Using bond energies, estimate the H-H bond energy in H2(g). 2NH3(g) N2(g) + 3H2(g) kJ/mol D Single Bonds Multiple Bonds C N O F Si P S a Br 1 H 436 413 391 463 565 318 322 347 C 413 346 305 358 485...
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
The average C - H bond energy in CH4 is 415 kJ / mol. Use the following data to calculate the average C - H bond energy in ethane ( C2H6;C - C bond ) , in ethane ( C2H4;C C bond ) , and in ethyne ( C2H2;C C bond ) . C2H6 ( g ) + H2 ( g ) rightarrow 2CH4 ( g ) delta H*rxn = - 65.07 kj / mol C2H4 ( g ) +...
12. Based on the following data, what is the CI-CI bond energy? H2(g) + Cl2(g) ? HCI(g); ?.? =-92.31 klimol-rxn Bond H-H H-CI Bond Energy (kJ/mol) 435 428 a. 432 kJ/mol b. 236 kJ/mol c. -236 kJ/mol d. -421 kJ/mol e. 421 kJ/mol 12.
1) For the following balanced reaction: 3H2(g) + 1 N2(g) → 2 NH3(g) a) Calculate the heat of reaction (AHRXN) using AH from Table 1 b) calculate the heat of reaction (AHRXN) using Bond Energies from Table 2 c) Is the reaction endothermic or exothermic? Explain based upon your results from part a and b. 2) Calculate the energy required in Joules to heat 275.5 g of ice at -40.0°C to water at 60.0°C. 3) For blue light with an...
1. a. Use the bond energy data provided to calculate AH.. for the following reaction. H-H + Cl-Cl → 2 H-CI Bond Bond Energy H-H 436 kJ/mol Cl-CI 243 kJ/mol H-CI 431 kJ/mol b. Based on your answer to part a, is the reaction an exothermic reaction or an endothermic reaction? Provide a brief explanation to support you choice of answer. An endothermic reaction occurs in a cylinder with initial volume of 1 L. 5 kJ of heat is transferred...
5. Methanol gas combustion is represented with the following reaction 2 H3C-O-H(g) + 3 0=0(g) 20=C=O(g) + 4H-O-H(g) Calculate the AH x using the average bond dissociation energies from the table below, for 1 mole of methanol. Bond Energy kJ/mol Bond Energy kJ/mol Bond Energy kJ/mol Bond Bond 436 347 414 611 389 Bond C-C Сс Cc C-N CEN C-o H-H HC H- N H-O HS HF H-C1 HBr H- 837 305 615 891 8 565 163 418 946 222...
The enthalpy change for the following reaction is 95.4 kJ. Using bond energies, estimate the N-H bond energy in N2H4(g). N2(g) + 2H2(g) N2H4(g) kJ/mol The enthalpy change for the following reaction is -92.2 kJ. Using bond energies, estimate the H-H bond energy in H2(g). 2NH3(g) N2(g) + 3H2(g) kJ/mol D Single Bonds Multiple Bonds C N O F Si P S a Br 1 H 436 413 391 463 565 318 322 347 C 413 346 305 358 485...
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
Most questions answered within 3 hours.
-
Which for loop is implemented correctly in Java?
Group of answer choices
for (i = 0...
asked 32 minutes ago -
Required information
[The following information applies to the questions
displayed below.]
In 2019, Alliant Corporation acquired...
asked 50 minutes ago -
How much must I invest today if I want to withdraw 1/3 of my
original investment...
asked 2 hours ago -
What is meant by a “term premium”?
What can explain such a premium? Is it a...
asked 4 hours ago -
23. Which molecule has only covalent bonds? A. CO2 B. Al2O3 C.
Mg3N2
24. The octet...
asked 5 hours ago -
the
total pressure for a mixture of N2O4 and NO2 is 2.20 atm. If Kp=
7.10...
asked 5 hours ago -
Delaware Corp. prepared a master budget that included $22,385
for direct materials, $28,600 for direct labor,...
asked 4 hours ago -
For pesticide HCB (hexachlorobenzene), its logarithmic partition
coefficient log Kow is 5.6. What would be the...
asked 5 hours ago -
A chemist requires 0.422 mil Na2CO3 for a reaction. How many
grams does this correspond to?
asked 5 hours ago -
If the vapor pressure of carvone is approximately 9.4 torr at 99
°C, approximately how much...
asked 5 hours ago -
A juice bottling company is carrying out a test at 10%
significance that the mean population...
asked 5 hours ago -
What is the reflectivity (in percent) needed to keep water at a
temperature near its freezing...
asked 5 hours ago