Explore topic-wise MCQs in Chemical Engineering.

This section includes 6 Mcqs, each offering curated multiple-choice questions to sharpen your Chemical Engineering knowledge and support exam preparation. Choose a topic below to get started.

1.

Which of the following constants is a type of equilibrium constant?

A. Dissociation constant
B. Association constant
C. Solubility
D. Decay constant
Answer» E.
Discussion
2.

Which of the following is true for the rate law of a reversible reaction?

A. It reduces to irreversible form when product concentration is zero
B. It satisfies thermodynamic relationships at all times
C. Rate law can be written only in terms of partial pressures
D. Rate law can be written only in terms of concentrations
Answer» B. It satisfies thermodynamic relationships at all times
Discussion
3.

For the reaction ½ A + 3B → 2Cthe specific reaction rate will be maximum for which species?

A. A
B. B
C. C
D. Equal for all species
Answer» C. C
Discussion
4.

The equilibrium constant increases when _____________

A. Initial concentration of reactant increases in endothermic reactions
B. Initial concentration of reactant decreases in endothermic reactions
C. Temperature increases in exothermic reactions
D. Temperature decreases in exothermic reactions
Answer» E.
Discussion
5.

Choose the correct rate law for the set of elementary reactions. 2A ⇌ B + C [k1,-k2] A + 5B → 6D [k3] 3C + 2D + B ⇌ 6E [k4, -k5] 5A + 3E ⇌ 2R [k6]

A. –rA = k1CA2 – k2CB2CC – k3CACB5 – k6CA5CE3
B. –rA = k1CA2 – k2CB2CC + k3CACB5 – k6CA5CE3
C. –rA = k1k4CACCCD – k2k5CE3 + k3k6CA6CB5CE3
D. –rA = k1k4CACCCD – k2k5CE3 – k3k6CA6CB5CE3
Answer» C. –rA = k1k4CACCCD – k2k5CE3 + k3k6CA6CB5CE3
Discussion
6.

Choose the correct rate law for the elementary reversible reaction 3A ⇌ B + 2C.

A. –rA = kCA3 – CBCC2/KC
B. –rA = k[CA3 – CBCC2KC]
C. –rA = k[CA3 – CBCC2]/KC
D. –rA = k[CA3 – CBCC2/KC]
Answer» E.
Discussion