Chemical Reaction Engineering If a solid-gas non-catalytic reaction occurs at very high temperature, the rate controlling step is the __________ diffusion. Pore None of these Film Ash layer Pore None of these Film Ash layer ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering Effectiveness factor (E) of a catalyst pellet is defined as, E = (actual rate within pore of catalyst/rate if notsnowed by pore diffusion) Effectiveness factor for a first order reaction is given by (where, T = Thiele modulus) Tan T/T Tan hT/tan T None of these Tan hT/T Tan T/T Tan hT/tan T None of these Tan hT/T ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering In the reversible reaction of the type, A + B ⇋ AB, in general The combination reaction will be exothermic, while the dissociation reaction will be endothermic The combination reaction will be endothermic, while the dissociation reaction will be exothermic Neither of the reactions will be en-dothermic Both forward and backward reactions will be exothermic The combination reaction will be exothermic, while the dissociation reaction will be endothermic The combination reaction will be endothermic, while the dissociation reaction will be exothermic Neither of the reactions will be en-dothermic Both forward and backward reactions will be exothermic ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering Fluidised bed reactor is characterised by Absence of continuous catalyst regeneration facility Comparatively smaller equipment Very small pressure drop Uniformity of temperature Absence of continuous catalyst regeneration facility Comparatively smaller equipment Very small pressure drop Uniformity of temperature ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering Pick out the wrong statement pertaining to space velocity of flow reactors. None of these The space velocity of 3 hr⁻¹ means that one third reactor volume of feed at specified conditions are being fed into the reactor The space velocity of 3 hr⁻¹ means that three reactor volumes of feed at specified conditions are being fed into the reactor every hour The unit of space velocity is (time)⁻¹ None of these The space velocity of 3 hr⁻¹ means that one third reactor volume of feed at specified conditions are being fed into the reactor The space velocity of 3 hr⁻¹ means that three reactor volumes of feed at specified conditions are being fed into the reactor every hour The unit of space velocity is (time)⁻¹ ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering Half life period of decomposition of a liquid 'A' by irreversible first order reaction is 12 minutes. The time required for 75% conversion of 'A' is __________ minutes. 6 12 18 24 6 12 18 24 ANSWER DOWNLOAD EXAMIANS APP
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