Part A: Draw the Lewis structures of all the molecules involved in the reaction: N2(g)+3H2(g)→2NH3(g) Part B: If the bond energy for the N≡N bond is 946 kJ/mol, how much energy is needed to break all...
Part A: Draw the Lewis structures of all the molecules involved in the reaction:
N2(g)+3H2(g)→2NH3(g)
Part B: If the bond energy for the N≡N bond is 946 kJ/mol, how much energy is needed to break all the bonds in 3.0 mol of nitrogen molecules?
Part C: If the bond energy for the H−H bond is 432 kJ/mol, how much energy is needed to break all the bonds in 9 hydrogen gas?
Part D: If the bond energy for the N=H bond is 391 kJ/mol, how much energy is released when 3.0 mol ammonia gas is formed?
Part E: What is the net result of energy needed to break the bonds, less the energy released when new bonds are formed?
Part F: How do you interpret the sign of the answer?
Homework Answers
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Part A: Draw the Lewis structures of all the molecules involved in the reaction: N2(g)+3H2(g)→2NH3(g) Part B: If the bond energy for the N≡N bond is 946 kJ/mol, how much energy is needed to break all...
1. Given the following reaction N2(g) + 3H2(g) → 2NH3(e) (a) How many number of moles...
1. Given the following reaction N2(g) + 3H2(g) → 2NH3(e) (a) How many number of moles of ammonia can be formed from 0.25 moles of N, gas? (b) How many moles of H, are needed to react with 0.25 moles of N, gas? If you begin with a gas mixture that contains 2.00 moles of Nzgas, and 3.0 moles of Hz gas, at the end of reaction, which reactant is not fully used and how much is left? How many...
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...
2NH3(g)--------N2(g)+3H2(g) delta H=160.0 kJ suppose 50.3 g of NH3 react calculate how much heat is absorbed...
2NH3(g)--------N2(g)+3H2(g) delta H=160.0 kJ suppose 50.3 g of NH3 react calculate how much heat is absorbed or released. please answer fast and explain each and every concept used in above question Provide proper calculation formula used and concept used
3H2 + N2 -> 2NH3 How many grams of H, are needed to produce 10.31 g...
3H2
+ N2 -> 2NH3
How many grams of H, are needed to produce 10.31 g of NH?! Express your answer numerically In grams. View Available Hint(s) IVO AQ RO 0 ? 8H Submit Previous Answers X Incorrect; Try Again; 2 attempts remaining Part D How many molecules (not moles) of NH3 are produced from 3.33x10-4 g of H? Express your answer numerically as the number of molecules. View Available Hint(s) * 0 | ΑΣφ
N2(8) + 3F2(g) → 2 NF3() AH 298 = - 264 kJ mol-'; AS98 = -...
N2(8) + 3F2(g) → 2 NF3() AH 298 = - 264 kJ mol-'; AS98 = - 278 J K-'mol-' The following questions relate to the synthesis reaction represented by the chemical equation in the box above. a. Calculate the value of the standard free energy change, AG 298. for the reaction. b. Determine the temperature at which the equilibrium constant, Keg, for the reaction is equal to 1.00. (Assume that Hº and AS are independent of temperature.) c. Calculate the...
The standard molar heat of formation of water is –285.8 kJ/mol. (b) Why is the magnitude of this value so much larger than the heat of vaporization of water (ΔH°vap = 41 kJ/mol)? Choose one: A. More energy is needed to break attractive forces between w
i need help with this a little bit. The standard molar heat of formation of water is –285.8 kJ/mol.b) Why is the magnitude of this value so much larger than the heat of vaporization of water (ΔH°vap = 41 kJ/mol)?Choose one:A. More energy is needed to break attractive forces between water molecules than to break H–H and O–O bonds and form H–O bonds.B. More energy is needed to form attractive forces between water molecules than to break H–H and O–O bonds and...
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...
1. The simplest ammonia formation is from nitrogen and hydrogen. Consider the reversible reaction N2(g) + 3H2(g) → 2NH3(g) The standard enthaply and Gibbs free energy of formation one mole NH3 is ∆H◦...
1. The simplest ammonia formation is from nitrogen and hydrogen. Consider the reversible reaction N2(g) + 3H2(g) → 2NH3(g) The standard enthaply and Gibbs free energy of formation one mole NH3 is ∆H◦ m = −46.11 kJ mol−1 and ∆G◦ m = −16.78 kJ mol−1 . (a) What is equilibrium constant at standard condition (25°C and 1 atm)? (b) What is equilibrium constant at 60°C and 1 atm? (c) What is the Gibbs free-energy change relative to that under standard...
Table 1: Bond Onders and Bond Energies for Selected Molecules Bond Bond Molecule Lewis Structure Bond...
Table 1: Bond Onders and Bond Energies for Selected Molecules Bond Bond Molecule Lewis Structure Bond Energy Order (kJ/mol HF H-8: H-F 1 570 HCI H-C: H-C1 11 432 HBr H-Br 366 НІ H-I 298 Cl2 C1-C1 1 Br-Br I-I 151 H2 Η-Η H-H 436 HO :0-H O-H REF 243 193 B12 498 н HH I H-C-C- H3CCH3 H C-C C-H 376 420 HH HH HCCH C-C C-H 720 444 H-C=C-H CO2 C-O 804 H-C-H H.CO C-O C-H 782 364...
.The enthalpy change for the following reaction is -137 kJ. The enthalpy change for the following...
.The enthalpy change for the following reaction is -137 kJ. The enthalpy change for the following reaction is -137 kJ. C2H4(g) + H2(g) -> C2H6(g) To analyze the reaction, first draw Lewis structures for all reactant and product molecules. Estimate the C-C bond energy in C2H6(g) , using tabulated bond energies (linked above) for the remaining bonds H C N O F Si P S Cl Br I H 436 413 391 463 565 318 322 347 432 366 299...
1. Given the following reaction N2(g) + 3H2(g) → 2NH3(e) (a) How many number of moles of ammonia can be formed from 0.25 moles of N, gas? (b) How many moles of H, are needed to react with 0.25 moles of N, gas? If you begin with a gas mixture that contains 2.00 moles of Nzgas, and 3.0 moles of Hz gas, at the end of reaction, which reactant is not fully used and how much is left? How many...
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...
3H2
+ N2 -> 2NH3
How many grams of H, are needed to produce 10.31 g of NH?! Express your answer numerically In grams. View Available Hint(s) IVO AQ RO 0 ? 8H Submit Previous Answers X Incorrect; Try Again; 2 attempts remaining Part D How many molecules (not moles) of NH3 are produced from 3.33x10-4 g of H? Express your answer numerically as the number of molecules. View Available Hint(s) * 0 | ΑΣφ
N2(8) + 3F2(g) → 2 NF3() AH 298 = - 264 kJ mol-'; AS98 = - 278 J K-'mol-' The following questions relate to the synthesis reaction represented by the chemical equation in the box above. a. Calculate the value of the standard free energy change, AG 298. for the reaction. b. Determine the temperature at which the equilibrium constant, Keg, for the reaction is equal to 1.00. (Assume that Hº and AS are independent of temperature.) c. Calculate the...
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...
Table 1: Bond Onders and Bond Energies for Selected Molecules Bond Bond Molecule Lewis Structure Bond Energy Order (kJ/mol HF H-8: H-F 1 570 HCI H-C: H-C1 11 432 HBr H-Br 366 НІ H-I 298 Cl2 C1-C1 1 Br-Br I-I 151 H2 Η-Η H-H 436 HO :0-H O-H REF 243 193 B12 498 н HH I H-C-C- H3CCH3 H C-C C-H 376 420 HH HH HCCH C-C C-H 720 444 H-C=C-H CO2 C-O 804 H-C-H H.CO C-O C-H 782 364...
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