P. w seakins, m. j. pilling, l. t. niiranen, d. gutman, and l. n.krasnoperov (j. phys. chem. 96, 9847(1992)) measured the forward and reverse rate constants forthe gas-phase reactionc2h5 (g) + hbr (g) c2h6 (g)+ br (g)and used their findings to compute thermodynamic parametersfor c2h5. the reaction isbimolecular in both directions with arrhenius parameters a =1.0 109 dm3 mol-1 s-1,ea= -4.2 kj/mol for the foward reaction and k'=1.4 1011 dm3 mol-1 s-1,ea= 53.3 kj/mol for the reverse reaction. compute ∆fh7,s7m, and ∆fg7of c2h5at 298 k

In meteorology, a  cloud  is an aerosol consisting of a visible mass of minute liquid droplets, frozen crystals, or other particles suspended in the atmosphere of a planetary body. nephology is the science of  clouds, which is undertaken in the  cloud  physics branch of meteorology.cirrus clouds  usually describe clouds high in the atmosphere that can include wispy clouds, typically with ice crystals. variations include cirrus, cirrocumulus and cirrostratus as defined by the cloud's position in the atmosphere.layered stratus clouds  have both flat tops and bases, and can appear as if they take up the whole sky, stretching from horizon to horizon. other combinations and variations include stratus, stratocumulus, nimbostratus and altostratus.cumulus clouds  often pile up in multiple layers of the atmosphere, representing clouds that develop vertically. cumulus clouds often look like pillars with anvil-type tops or columns of clouds stacked vertically. variations include cumulus, cumulus-congestus, cumulonimbus and altocumulus.

Yeah, but what are you trying to ask?