Chemical Reaction Engineering Calcination reaction of limestone (CaCO₃ → CaO + CO₂) goes to completion in the rotary kiln, because Of high calcination temperature CaO is not dissociated CO₂ escapes continuously CaO is more stable than CaCO₃ Of high calcination temperature CaO is not dissociated CO₂ escapes continuously CaO is more stable than CaCO₃ ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering Signal normally used to study non-ideal flow by stimulus response technique is __________ input. Step Pulse Both A & B Neither A nor B Step Pulse Both A & B Neither A nor B ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering For the liquid phase parallel reactions:R, rR = K?.CA2; E? = 80 KJ/moleS, rS = K?.CA ; E? = 120 KJ/mole The desired product is R. A higher selectivity of R will be achieved, if the reaction is conducted at High temperature in a CSTR High temperature in a PFR Low temperature in a PFR Low temperature in a CSTR High temperature in a CSTR High temperature in a PFR Low temperature in a PFR Low temperature in a CSTR ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering An isothermal irreversible reaction is being carried out in an ideal tubular flow reactor. The conversion in this case will __________ with decrease in space time. Increase Increase exponentially Decrease Remain unchanged Increase Increase exponentially Decrease Remain unchanged ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering Kinetics of a catalytic reaction can be best studied on a/an __________ reactor. Integral (plug flow) Differential (flow) Mixed Either A, B and C Integral (plug flow) Differential (flow) Mixed Either A, B and C ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering If a solid-gas non-catalytic reaction occurs at very high temperature, the rate controlling step is the __________ diffusion. Ash layer Film Pore None of these Ash layer Film Pore None of these ANSWER DOWNLOAD EXAMIANS APP
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