The concentration of atmospheric methane is 1.8 ppm, and the rate constant for the reaction between CH and OH is 3.6 x 10-15 cm3 molecule-1 s-1. Calculate the rate, in teragrams per year, of methane destruction by reaction with hydroxyl radical, the concentration of which is 8.7 x 105 molecules cm -3. See Problem 5-6 for additional data.

Match the vocabulary terms to their definitions. 1 . a long, chain-like set of molecules made up of repeating units joined end to end polymer 2 . a hard, brittle, heat- and corrosion-resistant material made by subjecting a nonmetallic mineral mixture to intense heat ceramic 3 . a plastic with low elongations that cannot be recycled thermoset 4 . a carbon fiber embedded in a polymer resin matrix thermoplastic 5 . a plastic with high elongations that can be recycled crystal 6 . a solid form resulting from the arrangement of atoms, ions, or molecules in definite geometric patterns composite