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Engineering Thermodynamics

Engineering Thermodynamics
The statement that molecular weights of all gases occupy the same volume is known as

Gas law
Dalton's law
Avogadro's hypothesis
Law of thermodynamics

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Engineering Thermodynamics
The hyperbolic process is governed by

Boyle's law
Gay-Lussac law
Avogadro's law
Charles' law

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Engineering Thermodynamics
If value of n is infinitely large in a polytropic process pVn = C, then the process is known as constant

Volume
Temperature
Enthalpy
Pressure

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Engineering Thermodynamics
For the constant pressure and heat input, the air standard efficiency of gas power cycle is in the order

Otto cycle, Diesel cycle, Dual cycle
Dual cycle, Otto cycle, Diesel cycle
Dual cycle, Diesel cycle, Otto cycle
Diesel cycle, Otto cycle, Dual cycle

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Engineering Thermodynamics
An adiabatic process is one in which

All of these
No heat enters or leaves the gas
The change in internal energy is equal to the mechanical work done
The temperature of the gas changes

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Engineering Thermodynamics
The thermal efficiency of an ideal gas turbine plant is given by (where r = Pressure ratio)

1 - (1/r) γ - 1/ γ
1 - rγ - 1
1 - (1/r) γ/γ - 1
rγ - 1

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