Chemical Reaction Engineering The space time is equivalent to the holding time in a steady state mixed reactor for Variable fluid density systems Gas reactions with changing no. of moles Non-isothermal gas reaction Constant fluid density systems Variable fluid density systems Gas reactions with changing no. of moles Non-isothermal gas reaction Constant fluid density systems ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering The synthesis of proteins and metabolism in biological objects occur in the presence of biocatalyst called None of these Fungi A ferment or an enzyme Haemoglobin None of these Fungi A ferment or an enzyme Haemoglobin ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering The units of frequency factor in Arhenious equation Are the same as those of the rate constant Are cycles per unit time Depend on the order of the reaction Depend on temperature, pressure etc. of the reaction Are the same as those of the rate constant Are cycles per unit time Depend on the order of the reaction Depend on temperature, pressure etc. of the reaction ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering Which of the following will give maximum gas conversion? Fluidised bed reactor Plug-flow catalytic reactor Fixed bed reactor Semi-fluidised bed reactor Fluidised bed reactor Plug-flow catalytic reactor Fixed bed reactor Semi-fluidised bed reactor ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering A catalyst loses its activity due to All of these Loss in surface area of the active component Agglomeration of metal particles caused by thermal sintering of the solid surface Covering of the catalytic active sites by a foregin substance All of these Loss in surface area of the active component Agglomeration of metal particles caused by thermal sintering of the solid surface Covering of the catalytic active sites by a foregin substance ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering Calcination reaction of limestone (CaCO₃ → CaO + CO₂) goes to completion in the rotary kiln, because CO₂ escapes continuously CaO is not dissociated Of high calcination temperature CaO is more stable than CaCO₃ CO₂ escapes continuously CaO is not dissociated Of high calcination temperature CaO is more stable than CaCO₃ ANSWER DOWNLOAD EXAMIANS APP
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