Chemical Reaction Engineering Space time equals the mean residence time For CSTR For narrow diameter tubular reactor When the density of the reaction mixture is constant For large diameter tubular reactor For CSTR For narrow diameter tubular reactor When the density of the reaction mixture is constant For large diameter tubular reactor ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering BET apparatus None of these Is made entirely of stainless steel Measures the catalyst surface area directly Operates at very high pressure None of these Is made entirely of stainless steel Measures the catalyst surface area directly Operates at very high pressure ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering If pore diffusion is the controlling step in a solid catalysed reaction, the catalyst Porosity is of less importance Internal surface area is utilised efficiently None of these Porosity is very important Porosity is of less importance Internal surface area is utilised efficiently None of these Porosity is very important ANSWER DOWNLOAD EXAMIANS APP
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 energy of activation of a chemical reaction Varies as fifth power of the temperature Is same as heat of reaction at constant pressure Both B and C Is the minimum energy which the molecules must have before the reaction can take place Varies as fifth power of the temperature Is same as heat of reaction at constant pressure Both B and C Is the minimum energy which the molecules must have before the reaction can take place ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering What is the unit of the rate constant in a chemical reaction in which 10% of the reactant decomposes in one hour, 20% in two hours, 30% in three hours and so on? Moles/litre.second Litre/mole.second Litre/second Litre/mole Moles/litre.second Litre/mole.second Litre/second Litre/mole ANSWER DOWNLOAD EXAMIANS APP
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