Chemical Reaction Engineering The effectiveness factor for large value of Thiele modulus (L√(K/D1)) of a solid catalysed first order reaction is equal to (where, L = length of the reactor, cm, D1 = diffusion co-efficient, cm²/second) 1/(L√(K/D1)) L√(K/D1) 1 ∞ 1/(L√(K/D1)) L√(K/D1) 1 ∞ ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering For the same residence time, which one will give the maximum conversion? Stirred tank followed by tubular flow reactor (each of 2.5 litres) Single stirred tank (v = 5 litres) Two stirred tank (each of 2.5 litres) in series Single tubular flow reactor (v = 5 litres) Stirred tank followed by tubular flow reactor (each of 2.5 litres) Single stirred tank (v = 5 litres) Two stirred tank (each of 2.5 litres) in series Single tubular flow reactor (v = 5 litres) ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering __________ is the controlling step in a highly temperature sensitive fluid-solid non-catalytic reaction. None of these Gas film diffusion Ash diffusion Chemical reaction None of these Gas film diffusion Ash diffusion Chemical reaction ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering If ΔG (free energy change) for a chemical reaction is very large and negative, then the reaction is Just feasible Unpredictable as ΔG is no measure of feasibility of a reaction Not feasible Very much feasible Just feasible Unpredictable as ΔG is no measure of feasibility of a reaction Not feasible Very much feasible ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering A batch reactor is characterised by Constant residence time Variation in extent of reaction and properties of the reaction mixture with time Very low conversion Variation in reactor volume Constant residence time Variation in extent of reaction and properties of the reaction mixture with time Very low conversion Variation in reactor volume ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering Thermodynamic equilibrium constant in a system is affected by Pressure All of these Temperature Inerts Pressure All of these Temperature Inerts ANSWER DOWNLOAD EXAMIANS APP
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