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This section includes 30 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. |
CP-T curve of H2 forms a rectangle of height 20 J/oC from 4oC to 5oC? |
A. | 20 J |
B. | 80 J |
C. | 100 J |
D. | 140 JView answer |
Answer» D. 140 JView answer | |
2. |
CP-T curve of CO2 forms a rectangle of height 10 J/oC from 5oC to 10oC? |
A. | 10 J |
B. | 50 J |
C. | 100 J |
D. | 250 JView answer |
Answer» C. 100 J | |
3. |
CP-T curve covers 10 J from 2oC to 10oC, what is the enthalpy change? |
A. | 10 J |
B. | 20 J |
C. | 80 J |
D. | 100 JView answer |
Answer» B. 20 J | |
4. |
Heat Capacity of water is given by 4 + T2, what is the enthalpy change from 0oC to 3oC? |
A. | 7 J |
B. | 14 J |
C. | 21 J |
D. | 32 JView answer |
Answer» D. 32 JView answer | |
5. |
Heat Capacity of CO2 is given by 12 + 3T + T2, what is the enthalpy change from 0oC to 6oC? |
A. | 169 J |
B. | 198 J |
C. | 244 J |
D. | 360 JView answer |
Answer» C. 244 J | |
6. |
A mixture contains 20% SO2 with CP= 35 J/oC, 30% NO3 with CP = 20 J/oC and 50% CO2 with CP = 40 J/oC, what is the average CP of mixture? |
A. | 12 J/oC |
B. | 17 J/oC |
C. | 25 J/oC |
D. | 33 J/oCView answer |
Answer» E. | |
7. |
A mixture contains 20% O2 with CP = 10 J/oC, 30% N2 with CP = 20 J/oC and 50% CO2 with CP= 40 J/oC, what is the average CP of mixture? |
A. | 20 J/oC |
B. | 28 J/oC |
C. | 34 J/oC |
D. | 42 J/oCView answer |
Answer» C. 34 J/oC | |
8. |
A mixture contains 30% Ar with CP = 30 J/oC, 30% N2 with CP = 20 J/oC and 40% CH4 with CP = 10 J/oC, what is the average CP of mixture? |
A. | 7 J/oC |
B. | 12 J/oC |
C. | 19 J/oC |
D. | 26 J/oCView answer |
Answer» D. 26 J/oCView answer | |
9. |
A mixture contains 20% O2 with CP = 15 J/oC and 80% CO2 with CP = 20 J/oC, what is the average CP of mixture? |
A. | 3 J/oC |
B. | 9 J/oC |
C. | 16 J/oC |
D. | 19 J/oCView answer |
Answer» E. | |
10. |
What is the value of CP – CV for ideal gases? |
A. | 0 |
B. | R/2 |
C. | R |
D. | 2RView answer |
Answer» D. 2RView answer | |
11. |
Cyclohexane having CP = 48 J/oC, is heated from 50oC to 55oC, what is the enthalpy change? |
A. | 240 J |
B. | 480 J |
C. | 720 J |
D. | 960 JView answer |
Answer» B. 480 J | |
12. |
Steam having CP = 105 J/oC, is heated from 100oC to 104oC, what is the enthalpy change? |
A. | 210 J |
B. | 420 J |
C. | 630 J |
D. | 840 JView answer |
Answer» C. 630 J | |
13. |
Ice having CP = 15 J/oC, is heated from -10oC to -4oC, what is the enthalpy change? |
A. | 30 J |
B. | 60 J |
C. | 90 J |
D. | 120 JView answer |
Answer» D. 120 JView answer | |
14. |
Liquid benzene having CP = 29 J/oC, is heated from 5oC to 10oC, what is the enthalpy change? |
A. | 29 J |
B. | 145 J |
C. | 195 J |
D. | 290 JView answer |
Answer» C. 195 J | |
15. |
Water having CP = 10 J/oC, is heated from 10oC to 50oC, what is the enthalpy change? |
A. | 100 J |
B. | 250 J |
C. | 400 J |
D. | 500 JView answer |
Answer» D. 500 JView answer | |
16. |
A_MIXTURE_CONTAINS_20%_SO2_WITH_CP=_35_J/OC,_30%_NO3_WITH_CP_=_20_J/OC_AND_50%_CO2_WITH_CP_=_40_J/OC,_WHAT_IS_THE_AVERAGE_CP_OF_MIXTURE??$ |
A. | 12 J/<sup>o</sup>C |
B. | 17 J/<sup>o</sup>C |
C. | 25 J/<sup>o</sup>C |
D. | 33 J/<sup>o</sup>C |
Answer» E. | |
17. |
Heat Capacity of water is given by 4 + T2, what is the enthalpy change from 0oC to 3oC |
A. | 7 J |
B. | 14 J |
C. | 21 J |
D. | 32 J |
Answer» D. 32 J | |
18. |
Heat Capacity of CO2 is given by 12 + 3T + T2, what is the enthalpy change from 0oC to 6oC?$ |
A. | 169 J |
B. | 198 J |
C. | 244 J |
D. | 360 J |
Answer» C. 244 J | |
19. |
CP-T curve of H2 forms a rectangle of height 20 J/oC from 4oC to 5oC? |
A. | 20 J |
B. | 80 J |
C. | 100 J |
D. | 140 J |
Answer» D. 140 J | |
20. |
CP-T curve of CO2 forms a rectangle of height 10 J/oC from 5oC to 10oC? |
A. | 10 J |
B. | 50 J |
C. | 100 J |
D. | 250 J |
Answer» C. 100 J | |
21. |
CP-T curve covers 10 J from 2oC to 10oC, what is the enthalpy change? |
A. | 10 J |
B. | 20 J |
C. | 80 J |
D. | 100 J |
Answer» B. 20 J | |
22. |
A mixture contains 20% O2 with CP = 10 J/oC, 30% N2 with CP = 20 J/oC and 50% CO2 with CP= 40 J/oC, what is the average CP of mixture? |
A. | 20 J/<sup>o</sup>C |
B. | 28 J/<sup>o</sup>C |
C. | 34 J/<sup>o</sup>C |
D. | 42 J/<sup>o</sup>C |
Answer» C. 34 J/<sup>o</sup>C | |
23. |
A mixture contains 30% Ar with CP = 30 J/oC, 30% N2 with CP = 20 J/oC and 40% CH4 with CP = 10 J/oC, what is the average CP of mixture? |
A. | 7 J/<sup>o</sup>C |
B. | 12 J/<sup>o</sup>C |
C. | 19 J/<sup>o</sup>C |
D. | 26 J/<sup>o</sup>C |
Answer» D. 26 J/<sup>o</sup>C | |
24. |
A mixture contains 20% O2 with CP = 15 J/oC and 80% CO2 with CP = 20 J/oC, what is the average CP of mixture? |
A. | 3 J/<sup>o</sup>C |
B. | 9 J/<sup>o</sup>C |
C. | 16 J/<sup>o</sup>C |
D. | 19 J/<sup>o</sup>C |
Answer» E. | |
25. |
What is the value of CP – CV for ideal gases?$ |
A. | 0 |
B. | R/2 |
C. | R |
D. | 2R |
Answer» D. 2R | |
26. |
Cyclohexane having CP = 48 J/oC, is heated from 50oC to 55oC, what is the enthalpy change? |
A. | 240 J |
B. | 480 J |
C. | 720 J |
D. | 960 J |
Answer» B. 480 J | |
27. |
Steam having CP = 105 J/oC, is heated from 100oC to 104oC, what is the enthalpy change? |
A. | 210 J |
B. | 420 J |
C. | 630 J |
D. | 840 J |
Answer» C. 630 J | |
28. |
Ice having CP = 15 J/oC, is heated from -10oC to -4oC, what is the enthalpy change? |
A. | 30 J |
B. | 60 J |
C. | 90 J |
D. | 120 J |
Answer» D. 120 J | |
29. |
Liquid benzene having CP = 29 J/oC, is heated from 5oC to 10oC, what is the enthalpy change? |
A. | 29 J |
B. | 145 J |
C. | 195 J |
D. | 290 J |
Answer» C. 195 J | |
30. |
Water having CP = 10 J/oC, is heated from 10oC to 50oC, what is the enthalpy change? |
A. | 100 J |
B. | 250 J |
C. | 400 J |
D. | 500 J |
Answer» D. 500 J | |