MCQOPTIONS
Saved Bookmarks
MCQOPTIONS
This section includes 11 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. |
What is the enthalpy change of a reaction at 35oC, if the enthalpy of reactant at 35oC and 25oC are 18 J and 10 J, and enthalpy of product at 35oC and 25oC are 12 J and 8 J, and the enthalpy change of reaction at 25oC is 15 J? |
| A. | t9 J |
| B. | t14 J |
| C. | t22 J |
| D. | t27 J |
| Answer» E. | |
| 2. |
What is the enthalpy change of a reaction at 45oC, if the enthalpy of reactant at 45oC and 25oC are 10 J and 6 J, and enthalpy of product at 45oC and 25oC are 15 J and 8 J, and the enthalpy change of reaction at 25oC is 10 J? |
| A. | t14 J |
| B. | t21 J |
| C. | t27 J |
| D. | t34 J |
| Answer» C. t27 J | |
| 3. |
What is the enthalpy of reaction forC6H6 -> 3C2H2, if the conversion of C6H6 is 80%, and heat of formation of C6H6, and C2H2 are 24 J, and 8 J? |
| A. | t0 |
| B. | t2.4 J |
| C. | t4.8 J |
| D. | t5.6 J |
| Answer» D. t5.6 J | |
| 4. |
What is the enthalpy of reaction for CO2 + 4H2 -> 2H2O + CH4, if the conversion of CO2 is 50%, and heat of formation of CO2, H2, H2O, and CH4 are 6 J, 0, 4 J and 10 J? |
| A. | t2 J |
| B. | t5 J |
| C. | t6 J |
| D. | t9 J |
| Answer» E. | |
| 5. |
What is the enthalpy of reaction for C2H4 + 3O2 -> 2CO2+ 2H2O, if the conversion of CH4 is 50%, and heat of formation of CH4, O2, CO2, and H2O are 10 J, 0, 6 J and 4 J? |
| A. | t0 |
| B. | t2 J |
| C. | t5 J |
| D. | t10 J |
| Answer» E. | |
| 6. |
What is the enthalpy of reaction for CH4 + 2O2 -> CO2 + 2H2O, if the conversion of CH4 is 50%, and heat of formation of CH4, O2, CO2, and H2O are 10 J, 0, 6 J and 4 J? |
| A. | t0 |
| B. | t2 J |
| C. | t4 J |
| D. | t6 J |
| Answer» C. t4 J | |
| 7. |
What is the enthalpy of reaction for C + O2 -> CO2, if the conversion of C is 50%, and heat of formation of C, O2, and CO2 are 0, 0 and 10 J. |
| A. | t5 J |
| B. | t10 J |
| C. | t15 J |
| D. | t20 J |
| Answer» B. t10 J | |
| 8. |
What is the heat of reaction for C6H6 + 3H2 -> C6H12, if heat of formation of C6H6, H2, and C6H12 are 25 J, 5 J and 50 J respectively? |
| A. | t10 J |
| B. | t20 J |
| C. | t30 J |
| D. | t35 J |
| Answer» B. t20 J | |
| 9. |
What is the heat of reaction for C2H4 + 3O2 -> 2CO2 + 2H2O, if heat of formation of C2H4, O2, CO2, and H2O are 10 J, 5 J, 6 J and 2 J respectively? |
| A. | t-4 J |
| B. | t-2 J |
| C. | t0 |
| D. | t4 J |
| Answer» B. t-2 J | |
| 10. |
What is the heat of reaction for 2H2 + O2 -> 2H2O, if heat of formation of H2, O2, and H2O are 2 J, 5 J, and 10 J respectively? |
| A. | t2 J |
| B. | t5 J |
| C. | t8 J |
| D. | t11 J |
| Answer» E. | |
| 11. |
What is the heat of reaction for CH4 + 2O2 -> CO2 + 2H2O, if heat of formation of CH4, O2, CO2 and H2O are 10 J, 5 J, 6 J, and 12 J respectively? |
| A. | t-10 J |
| B. | t10 J |
| C. | t-20 J |
| D. | t20 J |
| Answer» C. t-20 J | |