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Chemical Reaction Engineering

Chemical Reaction Engineering
In a reaction, the threshold energy is equal to (where, A = activation energy N = normal energy of reactants)

A-N
A+N
N
A

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Chemical Reaction Engineering
In a reversible chemical reaction having two reactants in equilibrium, if the concentration of the reactants are doubled, then the equilibrium constant will

Become one fourth
Be halved
Remain the same
Also be doubled

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Chemical Reaction Engineering
Which of the following curves shows the effect of temperature on the extent of gas-solid adsorption at a given pressure?

Adsorption isobar
None of these
Freundlich adsorption isotherm
Langmuir adsorption isotherm

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Chemical Reaction Engineering
Which of the following chemical reactions will be favoured by low pressure ?

2HI ⇋ H₂ + I₂
N₂ + O₂ ⇋ 2NO
None of these
N₂O₂ ⇋ 2NO₂

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Chemical Reaction Engineering
The unit of frequency factor in Arhenious equation is

Same as that of activation energy
Same as that of rate constant
None of these
Dimensionless

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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
Saliva
Gland

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