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Mechanical Engineering Objective Questions { Thermodynamics }



267. Gases have
A.Only one value of specific heat
B.Two values of specific heat
C.Three values of specific heat
D.No value of specific heat
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268. Extensive property of a system is one whose value
A.Depends on the mass of the system, like volume
B.Does not depend on the mass of the system, like temperature, pressure, etc.
C.Is not dependent on the path followed but on the state is dependent on the path followed and not on the state
D.Is always constant
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269. Work done in a free expansion process is
A.+ ve
B.- ve
C.Zero
D.Maximum
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270. If a gas is heated against a pressure, keeping the volume constant, then work done will be equal to
A.+ ve
B.- ve
C.Zero
D.Pressure X volume
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271. Properties of substances like pressure, temperature and density, in thermodynamic coordinates are
A.Path functions
B.Point functions
C.Cyclic functions
D.Real functions
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272. Which of the following quantities is not the property of the system
A.Pressure
B.Temperature
C.Specific volume
D.Heat
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273. According to Avogadro's law, for a given pressure and temperature, each molecule of a gas
A.Occupies volume proportional to its molecular weight
B.Occupies same volume
C.Occupies volume inversely proportional to its molecular weight
D.Occupies volume inversely proportional to its specific weight
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