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

Blood

Intestine

Gland

Saliva

Blood

Intestine

Gland

Saliva

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Chemical Reaction Engineering
What is the unit of the rate constant in a chemical reaction in which 10% of the reactant decomposes in one hour, 20% in two hours, 30% in three hours and so on?

Litre/second

Litre/mole.second

Moles/litre.second

Litre/mole

Litre/second

Litre/mole.second

Moles/litre.second

Litre/mole

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Chemical Reaction Engineering
The knowledge of initial concentration and rate constant is necessary to determine the half life time of a reaction of __________ order.

Second

Zero

First

None of these

Second

Zero

First

None of these

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Chemical Reaction Engineering
The reaction A → B is conducted in an adiabatic plug flow reactor (PFR). Pure A at a concentration of 2 kmol/m³ is fed to the reactor at the rate of 0.01 m³ /s and at a temperature of 500 K. If the exit conversion is 20%, then the exit temperature (in k)is (Data: Heat of reaction at 298 K = - 50000 kJ/ kmole of A reacted Heat capacities CPA = CPB = 100kJ/kmole. K (may be assumed to be independent of temperature))

600

1000

400

500

600

1000

400

500

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Chemical Reaction Engineering
The value of 'n' for a chemical reaction A → B, whose reaction rate is → CAn, will be __________ if the rate of the reaction increases by a factor of 8, when the concentration of is doubled.

1

3

2

1

3

2

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Chemical Reaction Engineering
Transition state theory relates the above quantities as

K ∝ T1.5

K ∝ e-E/RT

K ∝ √T

K ∝ T.eE/RT

K ∝ T1.5

K ∝ e-E/RT

K ∝ √T

K ∝ T.eE/RT

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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 What is the unit of the rate constant in a chemical reaction in which 10% of the reactant decomposes in one hour, 20% in two hours, 30% in three hours and so on?

Chemical Reaction Engineering The knowledge of initial concentration and rate constant is necessary to determine the half life time of a reaction of __________ order.

Chemical Reaction Engineering The value of 'n' for a chemical reaction A → B, whose reaction rate is → CAn, will be __________ if the rate of the reaction increases by a factor of 8, when the concentration of is doubled.

Chemical Reaction Engineering Transition state theory relates the above quantities as

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
What is the unit of the rate constant in a chemical reaction in which 10% of the reactant decomposes in one hour, 20% in two hours, 30% in three hours and so on?

Chemical Reaction Engineering
The knowledge of initial concentration and rate constant is necessary to determine the half life time of a reaction of __________ order.

Chemical Reaction Engineering
The value of 'n' for a chemical reaction A → B, whose reaction rate is → CAn, will be __________ if the rate of the reaction increases by a factor of 8, when the concentration of is doubled.

Chemical Reaction Engineering
Transition state theory relates the above quantities as