Mechanical Engineering :: Thermodynamics
- The volumetric or molar specific heat at constant pressure is the product of
- In a Carnot cycle, heat is transferred at
- The pressure exerted by an ideal gas is ________ of the kinetic energy of all the molecules contained in a unit volume of gas.
- For which of the following substances, the gas laws can be used with minimum error
- The condition for the reversibility of a cycle is
- If value of n is infinitely large in a polytropic process pVn = C, then the process is known as constant
- In S. I. units, the value of the universal gas constant is
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A.
The pressure and temperature of the working substance must not differ, appreciably, from those of the surroundings at any stage in the process |
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B.
All the processes, taking place in the cycle of operation, must be extremely slow |
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C.
The working parts of the engine must be friction free |
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D.
All of the above |