21. The general law of expansion or compression is pvn = C, The process is said to be hyperbolic, if n is equal to
22. During which of the following process does heat rejection takes place in Carnot cycle?
23. The unit of mass in S.I. units is
24. The unit of pressure in S.I. units is
25. The unit of length in S.I. units is
26. The unit of energy in S.I. units is
27. The unit of time in S.I. units is
28. The unit of temperature in S.I. units is
29. The unit of power in S.I. units is
30. The value of the product of molecular weight and the gas characteristic constant for all the gases in S.I. units is
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