The evaporation of a 120-nm film of n-pentane from a single
crystal of aluminum oxide is zero order with a rate constant of
1.92 * 1013 molecules>cm2 # s at 120 K.
a. If the initial surface coverage is 8.9 * 1016 molecules>cm2,
how long will it take for one-half of the film to evaporate?
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Master Half-Life Concept 1 with a bite sized video explanation from Jules Bruno