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Engineering Thermodynamics

Engineering Thermodynamics
The same volume of all gases would represent their

Specific weights
Densities
Molecular weights
Gas characteristic constants

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Engineering Thermodynamics
In a Carnot cycle, heat is transferred at

Constant pressure
Constant temperature
Constant volume
Constant enthalpy

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Engineering Thermodynamics
The unit of energy in S.I. units is

Joule
watt
joule/m
joule/s

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Engineering Thermodynamics
The heat flows from a cold body to a hot body with the aid of an external source. This statement is given by

Clausis
Gay-Lussac
Joule
Kelvin

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Engineering Thermodynamics
Otto cycle efficiency is higher than Diesel cycle efficiency for the same compression ratio and heat input because in Otto cycle

Combustion is at constant volume
Maximum temperature is higher
Expansion and compression are isentropic
Heat rejection is lower

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Engineering Thermodynamics
When two bodies are in thermal equilibrium with a third body, they are also in thermal equilibrium with each other. This statement is called

Zeroth law of thermodynamics
Second law of thermodynamics
First law of thermodynamics
Kelvin Planck's law

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