Explore topic-wise MCQs in Chemical Engineering.

This section includes 21 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.

In the reaction C + 2H2 -> CH4, if the heat liberated is -5 J, what is the heat of formation of CH4?

A. -5J
B. 5 J
C. 0 J
D. Cannot be determinedView answer
Answer» C. 0 J
Discussion
2.

In the reaction 2C + O2-> 2CO, if the heat liberated is 10 J, what is the heat of formation of CO?

A. -5 J
B. 5 J
C. -10 J
D. 10 JView answer
Answer» B. 5 J
Discussion
3.

In the reaction 2N -> N2, if the heat liberated is 6 J, what is the heat of formation of N2?

A. – 6 J
B. 6 J
C. 0
D. Cannot be determinedView answer
Answer» B. 6 J
Discussion
4.

In the reaction 2H2 + O2 -> 2H2O, if the heat liberated is 50 J, what is the heat of formation of H2O?

A. -25 J
B. 25 J
C. -50 J
D. 50 JView answer
Answer» B. 25 J
Discussion
5.

In the reaction C + O2 -> CO2, if the heat liberated is 10 J, what is the heat of formation of CO2?

A. -10 J
B. 10 J
C. 0
D. Cannot be determinedView answer
Answer» B. 10 J
Discussion
6.

Heat of formations of A, B, C, and D, are 3 J, 5 J, 4 J, and 8 J respectively, what is the heat of reaction 2A + 2B -> 2C + D?

A. -5 J
B. 0
C. 5 J
D. 8 JView answer
Answer» C. 5 J
Discussion
7.

Enthalpy of reactants is 30 J/Kg and enthalpy of products is 10 J/Kg, what is the heat of reaction?

A. -20 J/Kg
B. 20 J/Kg
C. -10 J/Kg
D. 10 J/KgView answer
Answer» B. 20 J/Kg
Discussion
8.

HEAT_OF_FORMATIONS_OF_A,_B,_C,_AND_D,_ARE_3_J,_5_J,_4_J,_AND_8_J_RESPECTIVELY,_WHAT_IS_THE_HEAT_OF_REACTION_2A_+_2B_->_2C_+_D??$

A. -5 J
B. 0
C. 5 J
D. 8 J
Answer» C. 5 J
Discussion
9.

In the reaction 2H2 + O2 -> 2H2O, if the heat liberated is 50 J, what is the heat of formation of H2O?$

A. -25 J
B. 25 J
C. -50 J
D. 50 J
Answer» B. 25 J
Discussion
10.

In the reaction C + O2 -> CO2, if the heat liberated is 10 J, what is the heat of formation of CO2
A. -10 J
B. 10 J
C. 0
D. Cannot be determined
Answer» B. 10 J
Discussion
11.

In the reaction C + 2H2 -> CH4, if the heat liberated is -5 J, what is the heat of formation of CH4?

A. -5J
B. 5 J
C. 0 J
D. Cannot be determined
Answer» C. 0 J
Discussion
12.

In the reaction 2C + O2-> 2CO, if the heat liberated is 10 J, what is the heat of formation of CO?

A. -5 J
B. 5 J
C. -10 J
D. 10 J
Answer» B. 5 J
Discussion
13.

In the reaction 2N -> N2, if the heat liberated is 6 J, what is the heat of formation of N2?

A. – 6 J
B. 6 J
C. 0
D. Cannot be determined
Answer» B. 6 J
Discussion
14.

Heat of formations of A, B, C, and D, are 2 J, 5 J, 3 J, and 10 J respectively, what is the heat of reaction 4A + 5B -> 2C + 2D?

A. -10 J
B. -7 J
C. -5 J
D. 0
Answer» C. -5 J
Discussion
15.

Heat of formations of A, B, C, and D, are 1 J, 2 J, 3 J, and 4 J respectively, what is the heat of reaction 3A + 4B -> 2C + D?

A. -1 J
B. 1 J
C. 3 J
D. 6 J
Answer» B. 1 J
Discussion
16.

Heat of formations of A, B, C, and D, are 5 J, 8 J, 2 J, and 15 J respectively, what is the heat of reaction 3A + B -> 3C + 2D?

A. 9 J
B. 10 J
C. 13 J
D. 15 J
Answer» D. 15 J
Discussion
17.

Heat of formations of A, B, C, and D, are 5 J, 10 J, 15 J, and 20 J respectively, what is the heat of reaction A + 4B -> 3C + D?

A. 10 J
B. 20 J
C. 35 J
D. 45 J
Answer» C. 35 J
Discussion
18.

Enthalpy of reactants is 50 J/Kg and enthalpy of products is 25 J/Kg, what is the heat of reaction?

A. -10 J/Kg
B. 10 J/Kg
C. -25 J/Kg
D. 25 J/Kg
Answer» D. 25 J/Kg
Discussion
19.

Enthalpy of reactants is 15 J/Kg and enthalpy of products is 40 J/Kg, what is the heat of reaction?

A. -10 J/Kg
B. 10 J/Kg
C. -25 J/Kg
D. 25 J/Kg
Answer» E.
Discussion
20.

For endothermic reactions, what is the heat of reaction?

A. Positive
B. Negative
C. Zero
D. Cannot Say
Answer» B. Negative
Discussion
21.

For exothermic reactions, what is the heat of reaction?

A. Positive
B. Negative
C. Zero
D. Cannot Say
Answer» C. Zero
Discussion