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...
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...
Answe all please!
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...
8. Calculate AH°, AE°, and w for the following reaction using the data in Table 2 in Study Sheet No. 34 ( in kJ): нн H-C-C-H нн H н H2(g) нH Н(8) (g) 220 304 248 256 +9.67 -296.9 -395.2 +98.3 -300.4 -370.4 16 TABLE 2 Average Bond Energy (kJ/mol) С -Н C-O C-O C-C N=N O=O 413 C=C HOS 615 C N С-F С-СI Н-О 891 C C С-N 351 812 439 292 615- 436 329 803 356 C-N...
40. (4 pts) Use the bond energies provide bond energies provided to estimate for the reaction below. 2 Brz() + CH3(g) → CH.Br.) AH...? Br-Br C.C CC C-Br CH Bond Energy (kJ/mol 193 837 347 276 414 41. (3 pts) Which would have a more exothermic lattice energy, and why? MgO or MgCl2 42 (2 pts) Why is the first ionization energy of oxygen smaller than the first ionization energy of nitrogen? 43. (2 pts) Give the ground state electron...