3. Consider the following reaction for the combustion of pentane to answer parts a and b...
Calculate the enthalpy for the reaction below using the following bond dissociation energies. • H-H 436 kJ/mol O-H 460 kJ/mol 0-0 180 kJ/mol • 0=0 498 kJ/mol H -774 kJ/mol -654 kJ/mol 654 kJ/mol 774 kJ/mol
2CH4(g)→C2H6(g)+H2(g) C2H6(g)+Cl2(g)→C2H5Cl(g)+HCl(g) N2(g)+3H2(g)→2NH3(g) Express your answer as a whole number and include the appropriate units. ΔHrxn∘= Use the average bond dissociation energies in the table given below to calculate approximate reaction enthalpies in kilojoules for the following processes: TABLE. Average Bond Dissociation Energies, D (kJ/mol) Н - н 436а | С — н |410 N— H 390| О — F I-I 151a 180 Н- С |410 C 350 N- C |300|O C Cl S - F 200 310 H -F...
Question 2 4 pts Use the given average bond dissociation energies (BDE) to estimate A Hreaction for the combustion of hydrogen in oxygen that produces water: 2H2 (8) + O26 --> 2H20 (6) Bond BDE(kJ/mol) H-H 436 0-0 498 H-O 460
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...
Question 6 0.5 pts The table below contains the bond dissociation energies for common bonds. 410 Dissociation energy Bond (kJ/mol) |C-c 350 CNC 611 C-H 350 (c=0 799 0-0 180 O=O 498 460 C-O H-o Calculate the bond dissociation energy required for breaking all the bonds in a mole of water molecules, H20. Express your answer numerically, in terms of kJ/mol, and to three significant figures.
4. Use the bond enthalpies below and calculate the enthalpy of ethane combustion in kJ / mol. (AH° (H-H) = 436 kJ mol', AH° (C-H) = 435 kJ mol', AH° (0=0) = 498, AH° (CEO) = 732, AH (H-O) = 463] CzH6 (g) + 7/202 (g) - 2002 + 3H20 (g)
Calculate the enthalpy of each propagation step and the total enthalpy of reaction for the following transformation. A table of bond dissociation energies is provided for reference. Do not include units in your answer. For example, if the answer is positive one hundred kilojoules per mole, write "+100" only. ∆HP1 = ∆HP2 = ∆HP = Average Bond Dissociation Energies, D (kJ mol) Br-Br 193 R2C-CR2 262 (π bond) H-Br 369 C-H 420 C-O 350 C-C 350 C-Br 285 O-o 180...
13. (12 pts) Using the following bond dissociation energies, estimate the enthalpy of the reaction for the reaction between acetylene and hydroiodic acid to generate 1,2-diiodoethane. нн H-CEC-H 2 H- Bond Bond Enthalpy (kJ/mol) Bond Bond Enthalpy (kJ/mol) 839 C-H 413 С-С сс 348 C-I 240 Н-1 299 7
1. For the following substitution reaction, please (a) calculate the AHran. (b) is this reaction an exothermic or endothermic process? (5 pts) CHE CH3 H-C-Br + H-O-H + H-Br CHE н-с-он сн. Bond dissociation energies (CH3)2CH-Br 285 kJ/mol (CH),CH-OH 401 kJ/mol H-OH 498 kJ/mol H-Br 368 kJ/mol
1. For the following substitution reaction, please (a) calculate the AHn. (b) Is this reaction an exothermic or endothermic process? (5 pts) Bond dissociation energies CH3 CH3 Н-с-он (CH3)2CH-Br 285 kJ/mol H-OH Н-с -Br Н-Bг (CH3)2CH-OH 401 kJ/mol CH3 CH3 H-OH 498 kJ/mol 368 kJ/mol Н-Вг