Question

For a heterogeneous catalytic reaction

a.

free energy of activation is lowered in the presence of catalyst, which remains unchanged at the end of reaction.

b.

a relatively small amount of catalyst can cause the conversion of large amount of reactants which does not mean that catalyst concentration is important.

c.

the catalyst does not form an intermediate complex with the reactant.

d.

the surface of the catalyst does not play an important role during reaction.

Answer: (a).free energy of activation is lowered in the presence of catalyst, which remains unchanged at the end of reaction.

Interact with the Community - Share Your Thoughts

Uncertain About the Answer? Seek Clarification Here.

Understand the Explanation? Include it Here.

Q. For a heterogeneous catalytic reaction

Similar Questions

Explore Relevant Multiple Choice Questions (MCQs)

Q. Sulphuric acid is used as a catalyst in the

Q. Fractional conversion __________ with increase in pressure for ammonia synthesis reaction i.e., N₂ + 3H₂ ↔ 2NH₃.

Q. Pick out the wrong statement.

Q. The reason why a catalyst increases the rate of reaction is that, it

Q. A first order irreversible reaction, A → B is carried out separately in a constant volume as well as in a variable volume reactor for a particular period. It signifies that __________ in the two reactors.

Q. Which of the following is the most suitable for very high pressure gas phase reaction ?

Q. The reaction between oxygen and organic material is a/an __________ reaction.

Q. With decrease in temperature, the equilibrium conversion of a reversible endother-mic reaction

Q. In an exothermic chemical reaction, the reactants compared to the products have

Q. Which of the following will give maximum gas conversion ?

Q. __________ explains the mechanism of catalysis.

Q. From among the following, choose one which is not an exothermic process.

Q. The fractional volume change of the system for the isothermal gas phase reaction, A → 3B , between no conversion and complete conversion is

Q. A catalyst

Q. In case of physical adsorption, the heat of adsorption is of the order of __________ kcal/kg.mole.

Q. The most unsuitable reactor for carrying out reactions in which high reactant concentration favours high yields is

Q. Pick out the wrong statement pertaining to space velocity of flow reactors.

Q. A reactor is generally termed as an autoclave, when it is a

Q. 6 gm of carbon is burnt with an amount of air containing 18 gm oxygen. The product contains 16.5 gms CO₂ and 2.8 gms CO besides other constituents. What is the degree of conversion on the basis of disappearance of limiting reactant ?

Q. The rate constant of a chemical reaction decreases by decreasing the

Recommended Subjects

Are you eager to expand your knowledge beyond Basic Chemical Engineering? We've handpicked a range of related categories that you might find intriguing.

Click on the categories below to discover a wealth of MCQs and enrich your understanding of various subjects. Happy exploring!