A first order (n=1) catalyze decomposition of nitrous oxide (N,0 - A) in helium over spherical particles has been studied in a laboratory scale reactor at 1 bar and 600K. From the data Delo obtained from the experiment and using observable qualitatemine whether mass transfer limitations present b. diffusal tumitation is present temperature difference exists over the pasfilm de temperature difference exists within me particle Data: catalyst dp = 2.4 mm; e = 0.2; T = 5; 0.8nm de =0.45 J/m/s/k. Reaction (-AH2) = + 163 Kl/mol; TA, abu = 2.7 mol/s/m' cat