Review | Constants | Periodic Table Average Bond Dissociation Energies, D (kJ/mol) H−H 436 C−H 410 N−H 390 O−F 180 I−I 151 H−C 410 C−C 350 N−C 300 O−Cl 200 S−S 310 H−F 570 C−F 450 N−F 270 O−Br 210 S−Cl 250 H−Cl 432 C−Cl 330 N−Cl 200 O−I 220 S−Br 210 H−Br 366 C−Br 270 N−Br 240 O−N 200 S−S 225 H−I 298 C−I 240 N−N 240 O−O 180 H−N 390 C−N 300 N−O 200 F−F 159 H−O 460 C−O 350 O−H 460 Cl−Cl 243 H−S 340 C−S 260 O−C 350 Br−Br 193 Multiple covalent bonds C=C 728 C≡C 965 C=O 732 O−O 498 N≡N 945 Part A Use the bond dissociation energies from the table above to calculate an approximate ΔH∘ in kilojoules for the reaction of acethylene with hydrogen to yield ethane. HC≡CH(g)+2H2(g)→CH3CH3(g)

mechanics (greek   is that area of science concerned with the behaviour of physical bodies when subjected to forces or displacements, and the subsequent effects of the bodies on their environment. the scientific discipline has its origins in ancient greece with the writings of aristotle and archimedes[1][2][3] (see history of classical mechanics and timeline of classical mechanics). during the early modern period, scientists such as galileo, kepler, and newton laid the foundation for what is now known as classical mechanics. it is a branch of classical physics that deals with particles that are either at rest or are moving with velocities significantly less than the speed of light. it can also be defined as a branch of science which deals with the motion of and forces on objects. the field is yet less widely understood in terms of quantum theory.

explanation:

2b2t

explanation:

2b2t