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Engineering Thermodynamics

Engineering Thermodynamics
Which of the following parameters is constant for a mole for most of the gases at a given temperature and pressure

Entropy
Enthalpy
Volume
Mass

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Engineering Thermodynamics
The efficiency of the Carnot cycle may be increased by

Increasing the lowest temperature
Increasing the highest temperature
Decreasing the highest temperature
Keeping the lowest temperature constant

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Engineering Thermodynamics
A diathermic wall is one which

Prevents thermal interaction
Encourages thermal interaction
Discourages thermal interaction
Permits thermal interaction

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Engineering Thermodynamics
In an isothermal process, the internal energy

Remain constant
Increases
Decreases
First increases and then decreases

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Engineering Thermodynamics
The condition of perfect vacuum, i.e., absolute zero pressure can be attained at

A negative pressure and 0°C temperature
A temperature of 273 °K
A temperature of - 273.16°C
A temperature of 0°C

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Engineering Thermodynamics
Which of the following processes is irreversible process?

All of these
Throttling
Adiabatic
Isothermal

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MORE MCQ ON Engineering Thermodynamics

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