Chemical Reaction Engineering In the reversible reaction of the type, A + B ⇋ AB, in general Neither of the reactions will be en-dothermic Both forward and backward reactions will be exothermic The combination reaction will be endothermic, while the dissociation reaction will be exothermic The combination reaction will be exothermic, while the dissociation reaction will be endothermic Neither of the reactions will be en-dothermic Both forward and backward reactions will be exothermic The combination reaction will be endothermic, while the dissociation reaction will be exothermic The combination reaction will be exothermic, while the dissociation reaction will be endothermic ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering Considering the endotheomic dissociation of CaCO₃ in a closed vessel (CaCO₃ ⇋ CaO + CO₂), the pressure of CO₂ increases, if A catalyst is added An inert gas is pumped keeping the temperature constant The temperature is increased None of these A catalyst is added An inert gas is pumped keeping the temperature constant The temperature is increased None of these ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering If the pore diffusion controls in a catalytic reaction, the apparent activation energy Ea is equal to (E + ED) where ED is activation due to diffusion The intrinsic activation energy E ED/2 (E + ED)/2 (E + ED) where ED is activation due to diffusion The intrinsic activation energy E ED/2 (E + ED)/2 ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering A typical example of an exothermic reversible reaction conducted at high pressure in industry is Dehydration of ethanol Polymerisation of ethylene Methanol synthesis Reformation of methane Dehydration of ethanol Polymerisation of ethylene Methanol synthesis Reformation of methane ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering For the liquid phase parallel reactions:R, rR = K?.CA2; E? = 80 KJ/moleS, rS = K?.CA ; E? = 120 KJ/mole The desired product is R. A higher selectivity of R will be achieved, if the reaction is conducted at High temperature in a PFR Low temperature in a CSTR Low temperature in a PFR High temperature in a CSTR High temperature in a PFR Low temperature in a CSTR Low temperature in a PFR High temperature in a CSTR ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering The most suitable reactor for carrying out an auto-thermal reaction is a CSTR Plug-flow reactor Semi-batch reactor Batch reactor CSTR Plug-flow reactor Semi-batch reactor Batch reactor ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS