1. The sum of internal energy (U) and the product of pressure and volume (p.v) is known as
2. The efficiency of Diesel cycle approaches to Otto cycle efficiency when
3. The efficiency of Stirling cycle is __________ Carnot cycle.
4. When coal is strongly heated continuously for 42 to 48 hours in the absence of air in a closed vessel, the process is known as __________ of fuel.
5. The entropy __________ in an irreversible cyclic process.
6. According to Gay-Lussac law for a perfect gas, p/T = constant, if v is kept constant.
7. If the value of n = 0 in the equation pvn = C, then the process is called
8. Which of the following is correct?
9. The distillation carried out in such a way that the liquid with the lowest boiling point is first evaporated and re-condensed, then the liquid with the next higher boiling point is then evaporated and re-condensed, and so on until all the available liquid fuels are separately recovered in the sequence of their boiling points. Such a process is called
10. Which of the following gas is mostly used in town for street and domestic lighting and heating?
11. The value of gas constant (R) in S. I. units is
12. The specific heat of water is
13. An isothermal process is governed by
14. The universal gas constant of a gas is the product of molecular mass of the gas and the gas constant.
15. The efficiency of Diesel cycle increases with
16. According to Avogadro's law, the density of any two gases is __________ their molecular masses, if the gases are at the same temperature and pressure.
17. Stirling and Ericsson cycles are
18. The value of 1 mm of Hg is equal to
19. In the first law of thermodynamics, the total energy of the system remains constant.
20. One kg of carbon monoxide requires __________ kg of oxygen to produce 11/7 kg of carbon dioxide gas.
Thermodynamics MCQ 2
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