MCQOPTIONS
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MCQOPTIONS
This section includes 13 Mcqs, each offering curated multiple-choice questions to sharpen your Thermodynamics knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
Phase change occurs at |
| A. | constant pressure |
| B. | constant temperature |
| C. | constant pressure and temperature |
| D. | none of the mentioned |
| Answer» D. none of the mentioned | |
| 2. |
The greater the temperature, the ____ is the vapour pressure. |
| A. | lower |
| B. | higher |
| C. | depends on the substance |
| D. | none of the mentioned |
| Answer» C. depends on the substance | |
| 3. |
The isotherm passing through the critical point is called the critical isotherm. |
| A. | true |
| B. | false |
| Answer» B. false | |
| 4. |
The triple point is a line on the p-V diagram, where all the three phases, solid, liquid and gas exist. |
| A. | true |
| B. | false |
| Answer» B. false | |
| 5. |
Which of the following exists in a p-V diagram for water? |
| A. | saturated solid line |
| B. | saturated liquid lines |
| C. | saturated vapour line |
| D. | all of the mentioned |
| Answer» E. | |
| 6. |
THE_ISOTHERM_PASSING_THROUGH_THE_CRITICAL_POINT_IS_CALLED_THE_CRITICAL_ISOTHERM.?$ |
| A. | true |
| B. | false |
| Answer» B. false | |
| 7. |
Phase change occurs at$ |
| A. | constant pressure |
| B. | constant temperature |
| C. | constant pressure and temperature |
| D. | none of the mentioned |
| Answer» D. none of the mentioned | |
| 8. |
The greater the temperature, the ____ is the vapour pressure.$ |
| A. | lower |
| B. | higher |
| C. | depends on the substance |
| D. | none of the mentioned |
| Answer» C. depends on the substance | |
| 9. |
At a pressure below the triple point line, |
| A. | the substance cannot exist in the liquid phase |
| B. | the substance when heated transforms from solid to vapour |
| C. | both of the mentioned |
| D. | none of the mentioned |
| Answer» D. none of the mentioned | |
| 10. |
In which of the following state does water exist? |
| A. | saturated solid state |
| B. | saturated liquid state |
| C. | saturated vapour state |
| D. | all of the mentioned |
| Answer» E. | |
| 11. |
A saturation state is a state from which a change of phase may occur |
| A. | without a change of pressure or temperature |
| B. | with a change of pressure or temperature |
| C. | both of the mentioned |
| D. | none of the mentioned |
| Answer» B. with a change of pressure or temperature | |
| 12. |
For water, as temperature increases, volume always increases? |
| A. | true |
| B. | false |
| Answer» C. | |
| 13. |
Which of the following is a property of a pure substance? |
| A. | it has constant chemical composition throughout its mass |
| B. | it is a one-component system |
| C. | it may exist in one or more phases |
| D. | all of the mentioned |
| Answer» E. | |