The specific heat of saturated water vapour at 100?C is
A.zero
B.positive
C.negative
D.infinity
Category: Chemical Thermodynamics Mcqs
The minimum number of degrees of freedom for any system is
A.0
B.1
C.2
D.3
Specific heat of a gas for a reversible adiabatic process
A.is zero
B.is infinity
C.is negative
D.varies between zero and infinity
Which of the following has minimum specific heats ratio
A.Hydrogen
B.Nitrogen
C.Mercury vapour
D.Sulphur dioxide
Torr is equal to the pressure of
A.0.1 mm of Hg at 0?C in a standard gravitational field
B.1 mm of Hg at 0?C in a standard gravitational field
C.0.01 mm of Hg at 0?C in a standard gravitational field
D.0.001 mm of Hg at 0?C in a standard gravitational field
A system is called open system if
A.only the energy crosses the system boundary
B.both energy and mass cross the system boundary
C.neither energy nor mass crosses the system boundary
D.only the mass crosses the system boundary
For a real gas obeying van der Waals equation CP-CV is
A.R
B.< R
C.> R
D.zero
Generalized compressibility factor chart is a plot of
A.compressibility factor versus reduced temperature with reduced pressure as parameter
B.compressibility factor versus reduced pressure with reduced temperature as parameter
C.compressibility factor versus pressure with absolute temperature as parameter
D.compressibility factor versus absolute temperature with pressure as parameter
The internal energy of an ideal gas depends on
A.its pressure only
B.its volume only
C.its temperature only
D.the size of its molecules only
For values of compressibility factor (Z) less than 1 the volume of a real gas
A.is always greater than the volume predicted by ideal-gas law
B.is always less than the volume presicated by ideal-gas law
C.is always equal to the volume predicted by ideal gas law
D.may be less than equal to or greater than the volume predicted by ideal-gas law depending on the nature of the gas
