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Engineering Thermodynamics

Engineering Thermodynamics
Work done is zero for the following process

Free expansion
Throttling
All of the listed here
Constant volume

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Engineering Thermodynamics
A mixture of gas expands from 0.03 m3 to 0.06 m3 at a constant pressure of 1 MPa and absorbs 84 kJ of heat during the process. The change in internal energy of the mixture is

84 kJ
30 kJ
114 kJ
54 kJ

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Engineering Thermodynamics
Water contained in a beaker can be made to boil by passing steam through it

At atmospheric pressure
Not possible
At a pressure greater than atmospheric pressure
Any pressure

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Engineering Thermodynamics
The heat and mechanical energies are mutually convertible. This statement was established by

Boyle
Charles
Joule
None of these

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

Isentropic expansion
Isothermal compression
Isentropic compression
Isothermal expansion

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Engineering Thermodynamics
If a fluid expands suddenly into vacuum through an orifice of large dimension, then such a process is called

Free expansion
Hyperbolic expansion
Adiabatic expansion
Parabolic expansion

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