1. If the temperature remains constant, the volume of a given mass of a gas is inversely proportional to the pressure. This is known as
- Charles law
- Joule's law
- Boyle's law
- Gay-Lussac's law
2. The State of a substance whose evaporation from its liquid state is complete, is known as
- Steam
- Vapour
- Perfect gas
- Air
3. The value of gas constant (R) is
- 28.7 J/Kg.K
- 287 J/Kg.K
- 2.87 J/Kg.K
- 0.287 J/Kg.K
4. The gas constant (R) is equal to the ................. of two specific heats.
- Sum
- Difference
- Product
- Ratio
5. The specific heat at constant pressure is .............. that of specific heat at constant volume.
- More than
- Equal to
- Less than
6. The ratio of specific heat at constant pressure (Cp) and specific heat at constant volume (Cv) is
- Equal to one
- Less than one
- More than one
- None of these
7. The value of Cp/Cv for air is
- 1
- 1.8
- 1.4
- 2.3
8. When the gas is heated at constant pressure, then the heat supplied
- Raises the temperature of the gas
- Increases the internal energy of the gas
- Does some external work during expansion
- Both (a) & (b)
- Both (b) & (c)
::See Also::
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