Chemical Engineering - Chemical Reaction Engineering - Discussion


A catalyst

[A]. initiates a reaction.
[B]. lowers the activation energy of reacting molecules.
[C]. is capable of reacting with any one of the reactants.
[D]. can not be recovered chemically unchanged at the end of a chemical reaction.

Answer: Option B


No answer description available for this question.

Deepak Bhengra said: (Oct 23, 2012)  
A catalyst is defined as a substance, usually used in small amounts relative to the reactants, that modifies and increases the rate of a reaction without being consumed in the process.

Gideon Malatji said: (Mar 17, 2013)  
Differentiate between homogeneous and heterogeneous catalyst?

Satyam said: (Nov 9, 2013)  
Actually I think D is also correct as the catalyst can be recovered after the reaction unchanged.

Jayesh Desai said: (Dec 25, 2013)  
I think catalyst reduce the require activation energy of reactant to made in activated state for reaction. Give fast reaction at low energy.

Ronak Pahadia said: (Sep 15, 2016)  
Catalyst doesn't only lower the activation energy but it can also increase the activation energy in case of unfavorable reaction or to increase the reaction time?

Eswar said: (Oct 8, 2018)  
How activation energy is decreased?

Aemro Guadie Tefera said: (Feb 1, 2019)  
Why not A is the answer?

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