Chemical Reaction Engineering When the reaction occurs in the diffusion controlled region, the apparent activation energy as measured is only __________ the true value. Half None of these Equal Twice Half None of these Equal Twice ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering From Arhenius law, a plot of loge K versus 1/T gives a straight line with a slope of (-E/R). The unit of E/R is K cal. °K K cal °K K cal/°K K cal. °K K cal °K K cal/°K ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering From among the following, choose one which is not an exothermic process. Methanol synthesis Ammonia synthesis Catalytic cracking Oxidation of sulphur Methanol synthesis Ammonia synthesis Catalytic cracking Oxidation of sulphur ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering The half life period of a first order reaction is Dependent on initial concentration of the reactants Always the same irrespective of the reaction Half the specific rate constant Proportional to the initial concentration of reactants Dependent on initial concentration of the reactants Always the same irrespective of the reaction Half the specific rate constant Proportional to the initial concentration of reactants ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering If the time required for half change is inversely proportional to the square of initial concentration and the velocity depends on the units in which the concentration term is expressed, then the order of reaction is 2 0 3 1 2 0 3 1 ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering For a heterogenous catalytic reaction, A + B → C, with equimole feed of A and B, the initial rate - rA0 is invariant with total pressure. The rate controlling step is Surface Kc/(1 + TS) reaction between absorbed A and B in the gas phase Surface reaction between absorbed A and absorbed B Desorption of C Surface reaction between A in the gas phase and absorbed B Surface Kc/(1 + TS) reaction between absorbed A and B in the gas phase Surface reaction between absorbed A and absorbed B Desorption of C Surface reaction between A in the gas phase and absorbed B ANSWER DOWNLOAD EXAMIANS APP
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