MCQOPTIONS
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MCQOPTIONS
This section includes 15 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 heat transferred for an unsteady state closed system, if change in enthalpy is 15 J, and change in volume is 2 m3 at constant pressure 5 Pa? |
| A. | t10 J |
| B. | t15 J |
| C. | t20 J |
| D. | t25 J |
| Answer» E. | |
| 2. |
What is the heat transferred for an unsteady state closed system, if a change in enthalpy is 5 J, and change in pressure is 10 Pa at constant volume 5 m3? |
| A. | t5 J |
| B. | t50 J |
| C. | t55 J |
| D. | t85 J |
| Answer» D. t85 J | |
| 3. |
What is the heat transferred for a 10 mole unsteady state closed system, if initial internal energy is 6 J/mole and final internal energy is 10 J/mole? |
| A. | t4 J |
| B. | t10 J |
| C. | t40 J |
| D. | t60 J |
| Answer» D. t60 J | |
| 4. |
What is the heat transferred for a 10 mole unsteady state closed system, if a change in internal energy is 5 J/mole? |
| A. | t5 J |
| B. | t10 J |
| C. | t50 J |
| D. | t100 J |
| Answer» D. t100 J | |
| 5. |
If the temperature of the reaction is 50oC what will be the temperature of the products of the reaction for which theoretical flame temperature is defined? |
| A. | t25<sup>o</sup>C |
| B. | t50<sup>o</sup>C |
| C. | t75<sup>o</sup>C |
| D. | t100<sup>o</sup>C |
| Answer» C. t75<sup>o</sup>C | |
| 6. |
If the temperature of the reaction is 25oC what will be the temperature of the products of the reaction for which theoretical flame temperature is defined? |
| A. | t25<sup>o</sup>C |
| B. | t45<sup>o</sup>C |
| C. | t75<sup>o</sup>C |
| D. | t100<sup>o</sup>C |
| Answer» D. t100<sup>o</sup>C | |
| 7. |
What are other effects occur in the process for which theoretical flame temperature is defined? |
| A. | tElectrical effects |
| B. | tFree radical formation |
| C. | tIonization |
| D. | tNo other effects |
| Answer» E. | |
| 8. |
How much the limiting reactant reacts in the process for which theoretical flame temperature is defined? |
| A. | tCompletely |
| B. | tPartially |
| C. | tDoes not react |
| D. | tNone of the mentioned |
| Answer» B. tPartially | |
| 9. |
What is the heat for the process for which theoretical flame temperature is defined? |
| A. | tPositive |
| B. | tNegative |
| C. | tZero |
| D. | tCannot say |
| Answer» D. tCannot say | |
| 10. |
Theoretical flame temperature is defined for which process? |
| A. | tIsothermal |
| B. | tAdiabatic |
| C. | tIsobaric |
| D. | tIsochoric |
| Answer» C. tIsobaric | |
| 11. |
What is the heat of reaction if enthalpy of inputs and outputs at 25oC are 10 J and 8 J, the enthalpy of input and outputs at given temperature are 5 J and 20 J, enthalpy change of the reaction is 30 J? |
| A. | t13 J |
| B. | t22 J |
| C. | t28 J |
| D. | t35 J |
| Answer» B. t22 J | |
| 12. |
What is the heat of reaction if enthalpy of inputs and outputs at 25oC are 5 J and 8 J, the enthalpy of input and outputs at given temperature are 12 J and 15 J, enthalpy change of the reaction is 25 J? |
| A. | t20 J |
| B. | t25 J |
| C. | t30 J |
| D. | t35 J |
| Answer» C. t30 J | |
| 13. |
What is the heat of reaction if enthalpy of inputs and outputs at 25oC are 10 J and 20 J, the enthalpy of input and outputs at given temperature are 25 J and 30 J, enthalpy change of the reaction is 50 J? |
| A. | t45 J |
| B. | t50 J |
| C. | t55 J |
| D. | t60 J |
| Answer» D. t60 J | |
| 14. |
What is the sensible heat of a reaction if the enthalpy of outputs is 5 J, and enthalpy of inputs is 10 J? |
| A. | t-5 J |
| B. | t5 J |
| C. | t-10 J |
| D. | t10 J |
| Answer» B. t5 J | |
| 15. |
What is the sensible heat of a reaction if the enthalpy of outputs is 15 J, and enthalpy of inputs is 5 J? |
| A. | t3 J |
| B. | t5 J |
| C. | t10 J |
| D. | t15 J |
| Answer» D. t15 J | |