Chemical Reaction Engineering A catalyst in a chemical reaction Decreases the activation energy All of these Increases the frequency of collisions of reacting species Alters the reaction mechanism Decreases the activation energy All of these Increases the frequency of collisions of reacting species Alters the reaction mechanism ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering For an ideal plug flow reactor, the value of Peclet number is 0 1 ∞ 10 0 1 ∞ 10 ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering Which of the following resistances is not involved in a gas phase catalytic (gas- solid) reaction? Gas film and pore surface diffusion resistances for products Gas film and pore surface diffusion resistances for reactants Ash resistance Surface phenomenon resistance Gas film and pore surface diffusion resistances for products Gas film and pore surface diffusion resistances for reactants Ash resistance Surface phenomenon resistance ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering Higher free energy of activation of a chemical reaction (at a given temperature) implies Higher rate of reaction Slower rate of reaction Higher equilibrium conversion Both B and C Higher rate of reaction Slower rate of reaction Higher equilibrium conversion Both B and C ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering A batch adiabatic reactor at an initial temperature of 373°K is being used for the reaction, A → B. Assume the heat of reaction is - 1kJ/mole at 373°K and heat capacity of both A and B to be constant and equal to 50J/mole.K. The temperature rise after a conversion of 0.5 will be 20°C 5°C 100°C 10°C 20°C 5°C 100°C 10°C ANSWER DOWNLOAD EXAMIANS APP
Chemical Reaction Engineering Which of the following is a characteristic of an ideal plug flow reactor? Flat velocity profile None of these Uniform mixing Axial dispersion Flat velocity profile None of these Uniform mixing Axial dispersion ANSWER DOWNLOAD EXAMIANS APP
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