Delta H(rxn) = Sum of bond enthalpy of reactants - Sum of bond enthalpy of products
Delta H(rxn) = 6*(C-H) + 2*(C-O) + 3*(O=O) - 4*(C=O) - 6*(O-H)
Delta H(rxn) = 6*(414) + 2*(360) + 3*(498) - 4*(707) - 6*(464)
Delta H(rxn) = -914 KJ ....Answer
Question 4 1 pts Use the given average bond energies to calculate AHrxn for the following...
Question 4 1 pts Use the given average bond energies to calculate Arxn for the following chemical reaction. H H H-C= CH + 2H-1 - 1- 6- 6- I Á Á Bond Bond energy (kJ/mol) C-H 413 C-C 348 CEC 839 C-1 240 H-1 299 -217 kJ +217 kJ 0-160 kJ -63 kJ +160 kJ
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
Use bond energies to calculate AHrxn for this reaction. CH3OH (g) + 3/202 (g) - CO2(g) + 2H20 (g) Hºnx = ? Bond Bond Energy (kJ/mol) C-H 414kJ O-H 464k) C=0 799kJ 0=0 498kJ C-O 360kJ
Use the table to answer questions about bond energies. Bond Bond Energy (KJ/mol) C—C 347 C=C 611 C-H 414 C-O 360 C=O 736 O-O 142 O=O 498 H-O 464 (i) Calculate the bond energy for breaking all the bonds in a mole of methane, CH4 Express your answer numerically in kilojoules per mole. Change in Heat Ch4 ?=KJ/mol (ii) Calculate the bond energy for breaking all the bonds in a mole of O2 molecules? Express your answer numerically in kilojoules...
Estimate the enthalpy of the reaction below using these average bond energies 2 H-O-H ---> O=O + 2 H-H O-H: 464 kJ/mol O=O: 498 kJ/mol H-H: 436 kJ/mol a. -6 kJ/mol b. -470 kJ/mol c. -442 kJ/mol d. 486 kJ/mol
Using the given bond dissociation energies, calculate ΔH for the reaction, C2H6 (g) + Cl2 (g) C2H5Cl (g) + HCl (g) C–C, 348 kJ/mol C–H, 414 kJ/mol Cl–Cl, 242 kJ/mol C–Cl, 327 kJ/mol H–Cl, 431 kJ/mol
Calculate AH for the following reaction using the given bond dissociation energies. >co,g)+2H,0(g) AH° (kJ/mol) CHg)20,g) Bond 142 О-О Н-О 459 С-Н 411 799 O O 498 С-О 358 Number ΔΗ. kJ/ mol This reaction is endothermic exothermic
use the bond energies provided in the table to estimate the
enthalphy change for the reaction
Question 3 Use the bond energies provided in the table to estimate the enthalpy change for the reaction: CH4) + N2Clag) CCl4(g) + N20) + 2H25) 0 -1305 kJ O 1305 kJ O 2107 kJ -501 kJ Question 4 6 pts F. G Н. J к L 4 Enter H- F- N 389 280 201 163 H 435 S 368 343 272 209 F...
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Consider the following reaction carried out under constant pressure 2HCl(aq) + Zn(s) - H2(g) + ZnCl2(s) AHpx = -80.97 kJ Calculate the heat associated with the complete reaction of 24.3 g of HCl with 16.8 g of Zn. 0-54.0 kJ 0-10.8 kJ O-55.2 kJ -20.8 kJ O-27.0 kJ Determine AHrxn for the reaction CO2(g) + 2 H2O(9) CH4(9) + 2 O2(g) given the following average bond energies (values given parentheses) C-H (414 kJ/mol) O=O (498 kJ/mol) C=0...
Use the molar bond enthalpy data in the table to estimate the value of AHrxn for the equation Average molar bond enthalpies. (Hbond) Bond kJ mol- Bond kJ mol- The bonding in the molecules is shown here. O-H 464 O-O 142 C-O 351 O-O502 CO 730 C-C 347 С-С |615 811 414 439 C-Cl 331 C-Br 276 C-N 293 615 890 N-H 390 N-O 201 418 N O 607 155 1243 Br-Br192 435 565 H-CI 431 H-Br 368 F-F |CI-CI...