Enzymes (a protein) are catalysts found in organisms. Its efficiency of catalysing a reaction is due to its capacity to lower the activation energy of the reaction. The enzyme ptyalin used for food digestion is present in

Chemical Reaction Engineering
Enzymes (a protein) are catalysts found in organisms. Its efficiency of catalysing a reaction is due to its capacity to lower the activation energy of the reaction. The enzyme ptyalin used for food digestion is present in

Intestine

Gland

Saliva

Blood

Intestine

Gland

Saliva

Blood

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Chemical Reaction Engineering
For the reaction, A + B → 2B + C,

rA = 2rB

rA = rB

rA = -rB

rA = rB/2

rA = 2rB

rA = rB

rA = -rB

rA = rB/2

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Chemical Reaction Engineering
What is the order of a chemical reaction in which doubling the initial concentration of the reactants doubles the half life time of the reaction?

3

2

1

Zero

3

2

1

Zero

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Chemical Reaction Engineering
Rate constant for a first order reaction does not depend upon reaction time, extent of reaction and the initial concentration of reactants ; but it is a function of reaction temperature. In a chemical reaction, the time required to reduce the concentration of reactant from 100 gm moles/litre to 50 gm moles/litre is same as that required to reduce it from 2 gm moles/litre to 1 gm mole/litre in the same volume. Then the order of this reaction is

0

1

2

3

0

1

2

3

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Chemical Reaction Engineering
The catalyst in a first order chemical reaction changes the

Activation energy

Heat of formation of the product

Equilibrium constant

Heat of reaction

Activation energy

Heat of formation of the product

Equilibrium constant

Heat of reaction

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Chemical Reaction Engineering
A plug-flow reactor is characterised by

Presence of axial mixing

High capacity

Constant composition and temperature of reaction mixture

Presence of lateral mixing

Presence of axial mixing

High capacity

Constant composition and temperature of reaction mixture

Presence of lateral mixing

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Chemical Reaction Engineering

Chemical Reaction Engineering Enzymes (a protein) are catalysts found in organisms. Its efficiency of catalysing a reaction is due to its capacity to lower the activation energy of the reaction. The enzyme ptyalin used for food digestion is present in

Chemical Reaction Engineering For the reaction, A + B → 2B + C,

Chemical Reaction Engineering What is the order of a chemical reaction in which doubling the initial concentration of the reactants doubles the half life time of the reaction?

Chemical Reaction Engineering The catalyst in a first order chemical reaction changes the

Chemical Reaction Engineering A plug-flow reactor is characterised by

Chemical Reaction Engineering
Enzymes (a protein) are catalysts found in organisms. Its efficiency of catalysing a reaction is due to its capacity to lower the activation energy of the reaction. The enzyme ptyalin used for food digestion is present in

Chemical Reaction Engineering
For the reaction, A + B → 2B + C,

Chemical Reaction Engineering
What is the order of a chemical reaction in which doubling the initial concentration of the reactants doubles the half life time of the reaction?

Chemical Reaction Engineering
The catalyst in a first order chemical reaction changes the

Chemical Reaction Engineering
A plug-flow reactor is characterised by