Chemical Reaction Engineering The energy of activation of a chemical reaction Is same as heat of reaction at constant pressure Is the minimum energy which the molecules must have before the reaction can take place Varies as fifth power of the temperature Both B and C Is same as heat of reaction at constant pressure Is the minimum energy which the molecules must have before the reaction can take place Varies as fifth power of the temperature Both B and C ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering For the non-catalytic reaction of particles with surrounding fluid, the time needed to achieve the same fractional conversion for particles of different but unchanging sizes is proportional to the square of particle diameter, when the __________ is the controlling resistance. Chemical reaction Either A, B or C Diffusion through ash layer Film diffusion Chemical reaction Either A, B or C Diffusion through ash layer Film diffusion ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering Which of the following will favour the reverse reaction in a chemical equilibrium reaction? Removal of at least one of the products at regular interval None of these Increasing the concentration of one or more of the products Increasing the concentration of one of the reactants Removal of at least one of the products at regular interval None of these Increasing the concentration of one or more of the products Increasing the concentration of one of the reactants ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering Which of the following will give maximum gas conversion? Plug-flow catalytic reactor Semi-fluidised bed reactor Fluidised bed reactor Fixed bed reactor Plug-flow catalytic reactor Semi-fluidised bed reactor Fluidised bed reactor Fixed bed reactor ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering Which of the following is a controlling factor in very fast heterogeneous reaction? Temperature Pressure Composition of reactant Heat and mass transfer effects Temperature Pressure Composition of reactant Heat and mass transfer effects ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering If n = overall order of a chemical reaction. a = initial concentration of reactant. t = time required to complete a definite fraction of the reaction. Then pick out the correct relationship. T ∝ 1/an - 1 T ∝ 1/an T ∝ an T ∝ 1/an + 1 T ∝ 1/an - 1 T ∝ 1/an T ∝ an T ∝ 1/an + 1 ANSWER DOWNLOAD EXAMIANS APP
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