Chemical Reaction Engineering Helium-mercury method is used for the measurement of the __________ of the catalyst. Porosity Surface area Both B & C Pore volume Porosity Surface area Both B & C Pore volume ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering Which of the following is used for calcination of limestone and dolomite in industrial practice? Moving bed reactor None of these Fixed bed reactor Fluidised bed reactor Moving bed reactor None of these Fixed bed reactor Fluidised bed reactor ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering Which of the following is the most suitable for isothermal operation? Fixed bed reactor Plug-flow reactor Back-mix reactor Batch reactor Fixed bed reactor Plug-flow reactor Back-mix reactor Batch reactor ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering A first order gaseous phase reaction is catalysed by a non-porous solid. The kinetic rate constant and the external mass transfer co-efficients are k and kg respectively. The effective rate constant (keff) is given by keff = k + kg 1/keff = 1/k + 1/kg keff = (k+ kg)/2 keff = (kkg)1/2 keff = k + kg 1/keff = 1/k + 1/kg keff = (k+ kg)/2 keff = (kkg)1/2 ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering A plug-flow reactor is characterised by Presence of axial mixing Constant composition and temperature of reaction mixture Presence of lateral mixing High capacity Presence of axial mixing Constant composition and temperature of reaction mixture Presence of lateral mixing High capacity ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering A first order reaction requires two equal sized CSTR. The conversion is More when they are connected in series Less when they are connected in series More when they are connected in parallel Same whether they are connected in series or in parallel More when they are connected in series Less when they are connected in series More when they are connected in parallel Same whether they are connected in series or in parallel ANSWER DOWNLOAD EXAMIANS APP
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