Chemical Reaction Engineering Reaction rate of a first order reaction, which is half completed in 23 minutes will be 0.05 min⁻¹ 0.03 sec⁻¹ 0.03 min⁻¹ 0.03 hr⁻¹ 0.05 min⁻¹ 0.03 sec⁻¹ 0.03 min⁻¹ 0.03 hr⁻¹ 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.) 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) Thiele modulus (L√(k/D1) None of these ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering The performance of a cascade of CSTR's can be improved by adding A P.F. reactor in parallel More CSTR's in parallel A P.F. reactor in series More CSTR's in series A P.F. reactor in parallel More CSTR's in parallel A P.F. reactor in series More CSTR's in series ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering Participation of __________ is involved in the occurrence of a chemical reaction. Electrons Neutrons Protons None of these Electrons Neutrons Protons None of these ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering The fractional volume change between no conversion and complete conversion, for the isothermal gas phase reaction, 2A → R, is -0.5 0.5 1.5 1 -0.5 0.5 1.5 1 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) E + ΔHA - ΔHR E + ΔHA E ΔHA + ΔHR E + ΔHA - ΔHR E + ΔHA E ΔHA + ΔHR ANSWER DOWNLOAD EXAMIANS APP
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