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Engineering Thermodynamics

Engineering Thermodynamics
Which of the following has the minimum atomic mass?

Oxygen
Sulphur
Carbon
Nitrogen

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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

None of the listed here
Thermodynamic law
Thermodynamic process
Thermodynamic cycle

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Engineering Thermodynamics
In an isothermal process

All of the listed here
There is no change in enthalpy
There is no change in temperature
There is no change in internal energy

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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
54 kJ
114 kJ

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Engineering Thermodynamics
Otto cycle consists of following four processes

Two isentropic, one constant volume and one constant pressure
Two isothermal and two isentropic
Two isentropic and two constant volumes
Two isentropic and two constant pressures

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Engineering Thermodynamics
Energy can neither be created nor destroyed but can be converted from one form to other is inferred from

Basic law of thermodynamics
Second law to thermodynamics
First law of thermodynamics
Zeroth low of thermodynamic

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