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Engineering Thermodynamics

Engineering Thermodynamics
Which of the following laws is applicable for the behaviour of a perfect gas?

Boyle's law
Charles ‘law
All of these
Gay Lussac’s law

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

73
21
25
23

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Engineering Thermodynamics
When cut-off ratio is ________; the efficiency of Diesel cycle approaches to Otto cycle efficiency

43835
Zero
2
43834

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Engineering Thermodynamics
Which of the following can be regarded as gas so that gas laws could be applicable, within the commonly encountered temperature limits?

O₂, N₂, water vapour
O₂, N₂, H₂, air
O₂, N₂, steam, CO₂
SO₂, NH₃, CO₂, moisture

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Engineering Thermodynamics
The behavior of a perfect gas, undergoing any change in the variables which control physical properties, is governed by

All of the listed here
Charles' law
Gay-Lussac law
Boyle's law

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Engineering Thermodynamics
The kinetic energy per kg molecule of any gas at absolute temperature T is equal to (where Ru = Universal gas constant)

Ru × T
1.5 Ru × T
3 Ru × T
2 Ru × T

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