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ENTRANCE TEST – 2016 Multiple Questions and Answers.
| 21. | The relation R NA = 1.38 x 10-25 JK-1 in a gas law is known as: | ||
| A. | Avogadro’s constant | ||
| B. | Charles constant | ||
| C. | Newton’s constant | ||
| D. | Boltzmann’s constant | ||
| 22. | The relation ‘PV = nRT’ shows which law of physics | ||
| A. | Charles Law | ||
| B. | Avogadro’s Law | ||
| C. | Newton’s Constant | ||
| D. | Ideal Gas Law | ||
| 23. | The rapid escape of air from a burst tyre is an example of: | ||
| A. | Adiabatic processes | ||
| B. | Isothermal process | ||
| C. | Cooling process | ||
| D. | First law of thermodynamics | ||
| 24. | Which relation exactly described the isothermal process? | ||
| A. | Q = W | ||
| B. | W = ̶ΔU | ||
| C. | Q = ̶ΔU | ||
| D. | Q = ΔU + W | ||
| 25. | If a turbine is working as a heat engine and takes that from hot body (427 °C) and exhausts into a body at 77 °C then what is the possible efficiency? | ||
| A. | 50% | ||
| B. | 70% | ||
| C. | 90% | ||
| D. | 95% | ||
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