MCQOPTIONS
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MCQOPTIONS
This section includes 9 Mcqs, each offering curated multiple-choice questions to sharpen your Engineering Chemistry knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
In the general phase diagram of water component system, the region that separates solid and liquid is called _______________ |
| A. | Fusion curve |
| B. | Sublimation curve |
| C. | Metastable curve |
| D. | Critical curve |
| Answer» C. Metastable curve | |
| 2. |
With respect to the phase diagram of copper zinc system. There happens a phase transition at a particular point. There happens an equilibrium shift consequently. At which point will zinc reach its maximum concentration? |
| A. | Some point between transition and shift |
| B. | After transition |
| C. | Before shift |
| D. | At the end of both transition and shift |
| Answer» E. | |
| 3. |
With respect to the general phase diagram of two component system. Identify the type of solution formed at the eutectic point. |
| A. | Regular solution |
| B. | Steady state solution |
| C. | Invariant solution |
| D. | Transition solution |
| Answer» B. Steady state solution | |
| 4. |
If the following conditions result in the formation of a regular solution? |
| A. | = 0 |
| B. | > 0 |
| C. | < 0 |
| D. | = 10 |
| Answer» D. = 10 | |
| 5. |
According to Gibbs phase rule for a 2-component system under condensed rule, what observation can be made within the equilibrium phase? |
| A. | T can be varied independently |
| B. | Varying a T value fixes the equilibrium compositions |
| C. | Neither T nor concentration can be varied respectively |
| D. | 2 phases cannot coexist |
| Answer» C. Neither T nor concentration can be varied respectively | |
| 6. |
For Gibbs free energy along a system path for a transformation from state 1 to state 2, the reaction kinetics can be expressed by __________ |
| A. | Rate = C exp(- G1/RT) |
| B. | Rate = C exp(- G2/RT) |
| C. | Rate = G/RT |
| D. | Rate = RT/G |
| Answer» B. Rate = C exp(- G2/RT) | |
| 7. |
What kind of behavior can phase rule identify? |
| A. | Molecular behavior |
| B. | Linear behavior |
| C. | Curvic behavior |
| D. | Atomic behavior |
| Answer» C. Curvic behavior | |
| 8. |
What kind of particles can phase rule be applied to? |
| A. | Micro |
| B. | Nano |
| C. | Pico |
| D. | Heavy particles |
| Answer» E. | |
| 9. |
Which of the following equilibriums can phase rule be applies to? |
| A. | Isometric |
| B. | Isobaric |
| C. | Isometric and Isobaric |
| D. | Mechanical |
| Answer» D. Mechanical | |