What is the difference in two specific heats Cp and Cv of one gram of helium ? The molecular weight of helium is 4. Assume that helium behaves as an ideal gas.
A.2 kcal/(kg.K)
B.8 kcal/(kg.K)
C.1 kcal/(kg.K)
D.0.5 kcal/(kg.K)
A.2 kcal/(kg.K)
B.8 kcal/(kg.K)
C.1 kcal/(kg.K)
D.0.5 kcal/(kg.K)
A.zero
B.positive
C.negative
D.infinity
A.0
B.1
C.2
D.3
A.is zero
B.is infinity
C.is negative
D.varies between zero and infinity
A.Hydrogen
B.Nitrogen
C.Mercury vapour
D.Sulphur dioxide
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.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
A.R
B.< R
C.> R
D.zero
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
A.its pressure only
B.its volume only
C.its temperature only
D.the size of its molecules only