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. 12 18 6 24 12 18 6 24 ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering Recycling back of outlet stream to the reactor from an ideal CSTR carrying out a first order liquid phase reaction will result in __________ in conversion. No change Either A or B, depends on the type of reaction Decrease Increase No change Either A or B, depends on the type of reaction Decrease Increase ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering Calcination reaction of limestone (CaCO₃ → CaO + CO₂) goes to completion in the rotary kiln, because CaO is not dissociated CO₂ escapes continuously Of high calcination temperature CaO is more stable than CaCO₃ CaO is not dissociated CO₂ escapes continuously Of high calcination temperature CaO is more stable than CaCO₃ ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering Rate constant 'k' and absolute temperature 'T' are related by collision theory (for bimolecular) as k ∝ T1.5 k ∝ exp(-E/RT) k ∝ √T k ∝ T k ∝ T1.5 k ∝ exp(-E/RT) k ∝ √T k ∝ T ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering Rate determining step in a reaction consisting of a number of steps in series is the __________ step. Intermediate Slowest Data insufficient; can't be predicted Fastest Intermediate Slowest Data insufficient; can't be predicted Fastest ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering For the reaction, A + B → 2B + C, rA = -rB rA = 2rB rA = rB/2 rA = rB rA = -rB rA = 2rB rA = rB/2 rA = rB ANSWER DOWNLOAD EXAMIANS APP
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