At temperatures between 775°c and 1100°c, the activation energy and preexponential for the diffusion coefficient of a2 in the metal oxide, ao, are 110 kj/mol and 8.7 x 10-8 m2/s, respectively. compute the mobility [in m2/(v-s)] of a2 at 818°c.

if the temperature drops and becomes cool

then the atmosphere can be freezing as the water vapor in the air is at maximum (100%) and can be severely cold

also can be snowing lightly as the moisture in the air will start to solidify

and btw this is not chemistry but