Chemical Reaction Engineering Fluidised bed reactor is characterised by Absence of continuous catalyst regeneration facility Uniformity of temperature Very small pressure drop Comparatively smaller equipment Absence of continuous catalyst regeneration facility Uniformity of temperature Very small pressure drop Comparatively smaller equipment 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 ∝ an T ∝ 1/an + 1 T ∝ 1/an T ∝ 1/an - 1 T ∝ an T ∝ 1/an + 1 T ∝ 1/an ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering Which of the following will give maximum gas conversion? Semi-fluidised bed reactor Plug-flow catalytic reactor Fixed bed reactor Fluidised bed reactor Semi-fluidised bed reactor Plug-flow catalytic reactor Fixed bed reactor Fluidised bed reactor ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering Transition state theory gives the rate constant as K α eE/RT K α T . e-E/RT K α e-E/RT K α √T . e-E/RT K α eE/RT K α T . e-E/RT K α e-E/RT K α √T . e-E/RT ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering Which of the following does not produce a change in the value of rate constant of a reaction? Pressure Temperature None of these Concentration and catalyst Pressure Temperature None of these Concentration and catalyst ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering The rate expression for a heterogenous catalytic reaction is given by, - rA = K.KA PA(1 + KA.PA + Kr.PR), where K is surface reaction rate constant and KA and KR are absorption equilibrium constants of A and R respectively. If KR PR >> (1 + KA PA), the apparent activation energy EA is equal to (given E is the activation energy for the reaction and ΔHR and ΔHA are the activation energies of adsorption of R and A) ΔHA + ΔHR E E + ΔHA E + ΔHA - ΔHR ΔHA + ΔHR E E + ΔHA E + ΔHA - ΔHR ANSWER DOWNLOAD EXAMIANS APP
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