2. Water gas is obtained by passing air and a large amount of steam over waste coal at about 650°C.
3. The Kerala Institute of Local Administration (KILA) is in?
4. When the gas is heated at constant volume, the heat supplied increases the internal energy of the gas.
5. Which of the following is the lightest and most volatile liquid fuel?
6. The processes occuring in open system which permit the transfer of mass to and from the system, are known as
7. Which of the following has the minimum atomic mass?
8. Workdone in a free expansion process is
9. The pressure exerted by an ideal gas is __________ of the kinetic energy of all the molecules contained in a unit volume of gas.
10. The compression ratio for petrol engines is
11. When the days and nights are equal in both the hemispheres of the Earth, it is called?
12. The efficiency of Diesel cycle approaches to Otto cycle efficiency when
13. The entropy __________ in an irreversible cyclic process.
14. The atomic mass of oxygen is
15. The ratio of specific heat at constant pressure (cp) and specific heat at constant volume (cv) is
16. Carbonisation of coal consists of
17. The efficiency of Stirling cycle is __________ Carnot cycle.
18. According to Gay-Lussac law for a perfect gas, p/T = constant, if v is kept constant.
19. There is no change in internal energy in an isothermal process.
20. If the value of n = 0 in the equation pvn = C, then the process is called
21. The value of specific heat at constant pressure (cp) is __________ that of at constant volume (cv).
22. 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.
23. The distillation carried out in such a way that the liquid with the lowest boiling point is first evaporated and recondensed, then the liquid with the next higher boiling point is then evaporated and recondensed, and so on until all the available liquid fuels are separately recovered in the sequence of their boiling points. Such a process is called
24. Which of the following gas is mostly used in town for street and domestic lighting and heating?
25. The value of gas constant (R) in S. I. units is