MCQOPTIONS
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MCQOPTIONS
This section includes 657 Mcqs, each offering curated multiple-choice questions to sharpen your Testing Subject knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
A change in state involving a decrease in entropy can be spontaneous, only if ____________________? |
| A. | It is exothermic |
| B. | It is isenthalpic |
| C. | It takes place isothermally |
| D. | It takes place at constant volume |
| Answer» B. It is isenthalpic | |
| 2. |
A Carnot cycle consists of the following steps ? |
| A. | Two isothermal and two isentropic |
| B. | Two isobaric and two isothermal |
| C. | Two isochoric and two isobaric |
| D. | Two isothermals and two isochoric |
| Answer» B. Two isobaric and two isothermal | |
| 3. |
4 kg moles of an ideal gas expands in vacuum spontaneously. The work done is_________________? |
| A. | 4 J |
| B. | ∞ |
| C. | 0 |
| D. | 8 J |
| Answer» D. 8 J | |
| 4. |
(1/V) (∂V/∂T)P is the mathematical expression__________________? |
| A. | Joule-Thomson co-efficient |
| B. | Specific heat at constant pressure (Cp) |
| C. | co-efficient of thermal expansion |
| D. | Specific heat at constant volume (CV) |
| Answer» D. Specific heat at constant volume (CV) | |
| 5. |
1st law of thermodynamics is nothing but the law of conservation of___________________? |
| A. | Momentum |
| B. | Mass |
| C. | Energy |
| D. | None of these |
| Answer» D. None of these | |
| 6. |
1m3 of an ideal gas at 500 K and 1000 kPa expands reversibly to 5 times its initial volume in an insulated container. If the specific heat capacity (at constant pressure) of the gas is 21 J/mole . K, the final temperature will be ? |
| A. | 35 K |
| B. | 174 K |
| C. | 274 K |
| D. | 154 K |
| Answer» D. 154 K | |