Chemical Reaction Engineering The minimum energy required to allow a chemical reaction to proceed is termed as the 'threshold energy '. Chemical reaction with low activation energy are Always irreversible Highly temperature sensitive Mostly irreversible Insensitive to temperature changes Always irreversible Highly temperature sensitive Mostly irreversible Insensitive to temperature changes 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) None of these Reactor dispersion number (D/vL) Reduced time (vt/V) Thiele modulus (L√(k/D1) None of these Reactor dispersion number (D/vL) Reduced time (vt/V) ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering The rate constant of a reaction is a function of the Extent of reaction Temperature of the system Initial concentration of the reactants Time of reaction Extent of reaction Temperature of the system Initial concentration of the reactants Time of reaction ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering Rate of a chemical reaction is not influenced by the Number of molecules of reactants taking part in a reaction Reactants concentration Catalyst Temperature Number of molecules of reactants taking part in a reaction Reactants concentration Catalyst Temperature ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering Rate constant 'k' and absolute temperature 'T' are related by collision theory (for bimolecular) as k ∝ exp(-E/RT) k ∝ T1.5 k ∝ T k ∝ √T k ∝ exp(-E/RT) k ∝ T1.5 k ∝ T k ∝ √T ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering For series reaction, the relative yield Both A and C hold good Is always greater for plug-flow reactor than for the single CSTR of the same volume Decreases with increasing conversion Statement in A is wrong Both A and C hold good Is always greater for plug-flow reactor than for the single CSTR of the same volume Decreases with increasing conversion Statement in A is wrong ANSWER DOWNLOAD EXAMIANS APP
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