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Engineering Thermodynamics

Engineering Thermodynamics
Entropy change depends on

Heat transfer
Change of temperature
Thermodynamic state
Mass transfer

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Engineering Thermodynamics
The oxygen atom is ________ times heavier than the hydrogen atom.

32
16
2
8

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

Isentropic compression
Isentropic expansion
Isothermal expansion
Isothermal compression

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Engineering Thermodynamics
Second law of thermodynamics defines

Heat
Work
Internal energy
Entropy

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Engineering Thermodynamics
The general law for the expansion or compression of gases, is

pv = C
pvn = C
pv = m R T
pvγ = C

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Engineering Thermodynamics
On weight basis, air contains following parts of oxygen

73
25
21
23

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