| 16. | General gas constant is represented by |
| a. | B |
| b. | S |
| c. | K |
| d. | R |
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Answer: (d).R
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| 17. | Molecules of liquids due to their motion possess |
| a. | potential energy |
| b. | kinetic energy |
| c. | heat energy |
| d. | thermal energy |
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Answer: (b).kinetic energy
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| 18. | For Boyle's law if we plot graph between inverse of volume and pressure result is |
| a. | curve line |
| b. | straight line |
| c. | circular line |
| d. | elliptical |
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Answer: (b).straight line
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| 19. | According to standard units value of R is |
| a. | 0.0765 |
| b. | 0.082 |
| c. | 0.074 |
| d. | 0.087 |
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Answer: (b).0.082
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| 20. | Compressed air in Linde's method is cooled by |
| a. | vacuum pump |
| b. | cool air |
| c. | ice |
| d. | water |
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Answer: (b).cool air
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