A system consisting of more than one phase is known as
A.Open system
B.Closed system
C.Isolated system
D.Non-uniform system
E.Heterogeneous system
Category: Thermodynamics Mcqs
Which one of the following is heterogeneous system
A.The cooling fluid in the radiator
B.Atmospheric air
C.Cooking gas in a cylinder
D.A mixture of hydrogen and oxygen
E.A mixture of ice, water and system.
On a temperature-entropy diagram the slope of constant pressure line is given by
A.T/S
B.S/T
C.T/Cp
D.Cv/T
E.T/Cv
In automobiles clutch is mounted between
A.Engine and flywheel
B.Flywheel and gear box
C.Gear box and differential
D.Engine and differential
E.Differential and wheels
Which of the following is a non-petroleum fuel?
A.Diesel oil
B.Petrol
C.Naphtha
D.Alcohol
E.All of the above
In a 2 stroke engine we get one power stroke in
A.180? of crank rotation
B.270? of crank rotation
C.360? of crank rotation
D.540? of crank rotation
E.720? of crank rotation
Avogadro’s numbers is
A.6.02486 x 1026 molecules/(k mol)
B.60.2486 x 1026 molecules/(k mol)
C.602.486 x 1026 molecules/(k mol)
D.6024.86 x 1026 molecules/(k mol)
E.60248.6 x 1026 molecules/(k mol)
The unit of universal gas constant is
A.erg/?K
B.kcal/?K
C.W/?K
D.dynes/?K
E.W/m?K
Second law of theromodynamics defines
A.Heat
B.Work
C.Enthalpy
D.Entropy
E.Internal energy
Gas laws are applicable to
A.Gases only
B.Gases and wet vapours
C.Gases and dry vapours
D.Gases and dry and wet vapours
E.Gases and dry, wet and super-heated vapours
