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 0 3 2 1 0 3 2 1 ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering In which of the following gaseous phase reactions, the equilibrium of the reaction remains unaffacted by pressure changes ? 2SO? + O? ? 2SO? 2O? ? 3O? 2NO? ? N?O? N? + O? ? 2NO 2SO? + O? ? 2SO? 2O? ? 3O? 2NO? ? N?O? N? + O? ? 2NO ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering In a/an __________ vessel, the fluid enters and leaves following plug flow. Closed Close-opened Open Open-closed Closed Close-opened Open Open-closed ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering Which of the following is not a dimension-less group used in catalysis ? (where, D = dispersion co-efficient, cm² /sec.D1 = diffusion co-efficient; cm²/sec L = length of the reactor, cm t = time, sec, v = volumetric flow rate, cm³/sec . V = volume, cm³.) Thiele modulus (L√(k/D1) Reduced time (vt/V) Reactor dispersion number (D/vL) None of these Thiele modulus (L√(k/D1) Reduced time (vt/V) Reactor dispersion number (D/vL) None of these ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering A batch reactor is characterised by Very low conversion Constant residence time Variation in extent of reaction and properties of the reaction mixture with time Variation in reactor volume Very low conversion Constant residence time Variation in extent of reaction and properties of the reaction mixture with time Variation in reactor volume ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering A first order reaction A → B occurs in an isothermal porous catalyst pellet of spherical shape. If the concentration of A at the centre of the pellet is much less than at the external surface, the process is limited by Reaction None of these Diffusion within the pellet External mass transfer Reaction None of these Diffusion within the pellet External mass transfer ANSWER DOWNLOAD EXAMIANS APP
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