Mechanical Engineering :: Thermodynamics
- Kelvin-Planck’s law deals with
- The thermal efficiency of an ideal gas turbine plant is given by (where r = Pressure ratio)
- A manufacturer claims to have a heat engine capable of developing 20 h.p. by receiving heat input of 400 kcal/mt and working between the temperature limits of 227° C and 27° C. His claim is
- The variables which control the physical properties of a perfect gas are
- According to Avogadro's Hypothesis
- The following cycle is used for air craft refrigeration
- In closed cycle gas turbine, the air is compressed
- A perfect gas at 27°C is heated at constant pressure till its volume is double. The final temperature is
- The amount of heat required to raise the temperature of __________ water through one degree is called kilojoules.
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A.
The molecular weights of all the perfect gases occupy the same volume under same conditions of pressure and temperature |
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B.
The sum of partial pressure of mixture of two gases is sum of the two |
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C.
Product of the gas constant and the molecular weight of an ideal gas is constant |
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D.
Gases have two values of specific heat |