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Engineering Thermodynamics

Engineering Thermodynamics
The same volume of all gases would represent their

Specific weights
Gas characteristic constants
Densities
Molecular weights

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Engineering Thermodynamics
When a system changes its state from one equilibrium state to another equilibrium state, then the path of successive states through which the system has passed, is known as

Thermodynamic law
None of the listed here
Thermodynamic cycle
Thermodynamic process

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Engineering Thermodynamics
The value of the product of molecular weight and the gas characteristic constant for all the gases in S.I. units is

735 J/kmol °K
29.27 J/kmol °K
83.14 J/kmol °K
848 J/kmol °K

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Engineering Thermodynamics
The polytropic index (n) is given by

log (v1/ v2)/ log (p1/p2)
log (p2/ p1)/log (v1/ v2)
log (p1p2)/log (v1v2)
log [(p1v1)/(p2v2)]

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Engineering Thermodynamics
During which of the following process does heat rejection takes place in Carnot cycle?

Isentropic expansion
Isothermal expansion
Isothermal compression
Isentropic compression

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Engineering Thermodynamics
The processes occurring in open system which permit the transfer of mass to and from the system, are known as

Flow processes
None of the listed here
Adiabatic processes
Non-flow processes

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