Atmospheric concentrations of methane and ozone can vary depending on the location and altitude. Calculate the rate of the reaction at 263 K for a methane concentration of 1.6 ppm (by volume) and an ozone concentration of 5.2 ppm (by volume). Note that 1 ppm of CH4 by volume means 1 L CH4/106 L air . Assume standard temperature and pressure (STP) so that 1 mol of gas occupies 22.4 L