Homework Answers
We know
∆H^o = Sum of ( number of moles * Bond energy required to break the reactant) - Sum of ( number of moles * bond energy required to break the product)
∆H^o = 1.0 mol * 150 KJ/mol + 3.0 mol * 240 KJ/mol - 2.0 mol * (3 * 210 KJ/mol)
∆H^o = 150 KJ + 720 KJ - 1260 KJ
∆H^o = -390 KJ -----(B)
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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∘=
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I need specific explanations for the answer
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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...
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1. Calculate the bond energy of the CI-F bond using the following data: Cl2(g) + F2(g) → 2CIF(g) AH = -108 kJ Bond enthalpies (kJ/mol): CI-CI (239); F-F (159) CI-C1 = 239 F.F : 159 1 2. Find the experimental Lattice energy of aluminum oxide using a Born-Haber cycle using the following information: AH® (aluminum oxide) = -1676 kJ/mol IE, (aluminum) = 577.6 kJ/mol IE, (aluminum) =1816.7 kJ/mol IE(aluminum) = 2744.8 kJ/mol AH® (aluminum atom, g) = 329.7 kJ/mol AHⓇEAI...
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...
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I need specific explanations for the answer
Use the molar bond enthalpy data in the table to estimate the value of AH xn for the equation kJ · mol-1 890 CH_(g) + HBr(g) — CH,Br(g) 464 Average molar bond enthalpies. (Hbond) Bond kJ. mol-1 Bond 0-H CEN 0-0 142 N-H C-O 351 N-N O=0 502 N=N C=0 730 NEN 390 The bonding in the molecules is shown. 159 H Br C -H 418 CSC + HBr - H-C -I 945...
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According to the following reaction, how much energy is evolved during the reaction of 32.5 g B2H6 and 72.5 g Cl2? The molar mass of B2H6 is 27.67 g/mol B2H6(g)6 Cl2(g)2 BCI3(g) +6 HCl(g) AHorxn-1396 kJ O 238 kJ O 1640 kJ O 429 kJ O 1430 kJ O 3070 kJ QUESTION 2 0.5 points Save Answer The value of AH° for the reaction below is -1107 kJ: 2Ва (s) + O2 (g) — 2ВаО (s) How many kJ of...
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