MCQOPTIONS
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MCQOPTIONS
This section includes 10 Mcqs, each offering curated multiple-choice questions to sharpen your Food Processing Unit Operations knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
Is equilibrium mean equal concentrations? |
| A. | True |
| B. | False |
| Answer» C. | |
| 2. |
Are these statements about the Equilibria involving physical processes true?Statement 1: Equilibrium is possible only in an open system. |
| A. | nStatement 2: All measurable properties of the system remain constant. |
| B. | True, False |
| C. | True, True |
| D. | False, True |
| E. | False, False |
| Answer» D. False, True | |
| 3. |
Who discovered law of mass action? |
| A. | Guldberg and Waage |
| B. | Newton |
| C. | Henricus |
| D. | Gyarmati |
| Answer» B. Newton | |
| 4. |
What is use of law of mass action in equilibrium? |
| A. | Predicts behaviors of solutions in dynamic equilibrium |
| B. | To calculate the concentration of products |
| C. | To calculate the concentration of reactants |
| D. | Predicts behaviors of solutes |
| Answer» B. To calculate the concentration of products | |
| 5. |
The equilibrium constant for the reaction of nitrogen and hydrogen to give ammonia is 0.95 at 745 K. The balanced equilibrium equation is as follows:N2(g)+3H2(g) 2NH3(g) |
| A. | nWhat is K<sub>p</sub> for this reaction at the same temperature? |
| B. | 2.54 10<sup>-4</sup> |
| C. | 3.85 10<sup>-4</sup> |
| D. | 4.27 10<sup>-4</sup> |
| E. | 3.73 10<sup>-4</sup> |
| Answer» B. 2.54 10<sup>-4</sup> | |
| 6. |
What is the relation between Kp and K? |
| A. | K<sub>p</sub>=K(RT)<sup> n</sup> |
| B. | K<sub>p</sub>=K-(RT)<sup> n</sup> |
| C. | K<sub>p</sub>=K+(RT)<sup> n</sup> |
| D. | K<sub>p</sub>=K/(RT)<sup> n</sup> |
| Answer» B. K<sub>p</sub>=K-(RT)<sup> n</sup> | |
| 7. |
Do catalysts affect equilibrium? |
| A. | True |
| B. | False |
| Answer» C. | |
| 8. |
What affects equilibrium? |
| A. | Changes in concentration |
| B. | Changes in and pressure |
| C. | Changes in temperature |
| D. | Changes in concentration, temperature, and pressure |
| Answer» E. | |
| 9. |
How does increase in concentration affect equilibrium? |
| A. | It will shift towards the products. |
| B. | It will shift towards the reactants. |
| C. | No change |
| D. | It will shift according to pressure change |
| Answer» B. It will shift towards the reactants. | |
| 10. |
What is equilibrium constant expression? |
| A. | The ratio of the concentrations of the reactants and molar constant and products |
| B. | The ratio of the concentrations of the products and reactants |
| C. | The ratio of the concentrations of the reactants and products |
| D. | The ratio of the concentrations of the catalyst and products |
| Answer» D. The ratio of the concentrations of the catalyst and products | |