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Engineering Thermodynamics

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

Sulphur
Nitrogen
Carbon
Oxygen

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Engineering Thermodynamics
Energy can neither be created nor destroyed, but it can be transformed from one form to another. This statement is known as

Zeroth law of thermodynamics
First law of thermodynamics
Kinetic theory of gases
Second law of thermodynamics

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Engineering Thermodynamics
The entropy may be expressed as a function of

All of these
Pressure and temperature
Temperature and volume
Heat and work

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Engineering Thermodynamics
The heat supplied to the gas at constant volume is (where m = Mass of gas, cv = Specific heat at constant volume, cp = Specific heat at constant pressure, T2 - T1 = Rise in temperature, and R = Gas constant)

mcp (T2 - T1)
mcv (T2 - T1)
mR (T2 - T1)
mcp (T2 + T1)

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Engineering Thermodynamics
The entropy __________ in an irreversible cyclic process.

Remains constant
None of these
Increases
Decreases

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Engineering Thermodynamics
Otto cycle is also known as

Constant temperature and pressure cycle
Constant pressure cycle
Constant temperature cycle
Constant volume cycle

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