Chemical Reaction Engineering Calcination reaction of limestone (CaCO₃ → CaO + CO₂) goes to completion in the rotary kiln, because Of high calcination temperature CO₂ escapes continuously CaO is more stable than CaCO₃ CaO is not dissociated Of high calcination temperature CO₂ escapes continuously CaO is more stable than CaCO₃ CaO is not dissociated ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering When the density of the reaction mixture is constant in a chemical reaction, the ratio of the mean residence time to space time is < 1 > 1 1 < 1 > 1 1 ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering Higher free energy of activation of a chemical reaction (at a given temperature) implies Slower rate of reaction Both B and C Higher equilibrium conversion Higher rate of reaction Slower rate of reaction Both B and C Higher equilibrium conversion Higher rate of reaction ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering If the catalyst pore size is small in comparison with the mean free path, collisions with the pore wall controls the process'. The diffusivity under this condition is called 'Knudsen diffusivity', which is affected by the Neither A nor B Both A & B Temperature Pressure Neither A nor B Both A & B Temperature Pressure ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering Equilibrium of a chemical reaction as viewed by kinetics is a __________ state. Dynamic unsteady None of these Static steady Dynamic steady Dynamic unsteady None of these Static steady Dynamic steady ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering A catalyst is said to be a negative catalyst, ifit Does not initiate the reaction Reduces the value of equilibrium constant All of these Retards the rate of reaction Does not initiate the reaction Reduces the value of equilibrium constant All of these Retards the rate of reaction ANSWER DOWNLOAD EXAMIANS APP
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