A. Ideal
B. Very high pressure
C. Very low temperature
D. All of the above
Related Mcqs:
- PVγ = Constant (where, γ = Cp/Cv) is valid for a/an ______________ process?
A. Isothermal
B. Isentropic
C. Isobaric
D. Adiabatic - The expression for entropy change, ΔS = n Cp . ln (T2/T1), is valid for the ______________ of a substance?
A. Simultaneous pressure & temperature change
B. Heating
C. Cooling
D. Both B. and C - The earth’s atmosphere is an envelope of gases present upto a height of about ______________ kms?
A. 10
B. 200
C. 1000
D. 2000 - Limestone powder is injected during pulverised coal burning in boilers to ______________ the flue gases?
A. Reduce SO2 content in
B. Catalytically convert SO2 to SO3 in
C. Increase the dew point of
D. None of these - “The equilibrium value of the mole fraction of the gas dissolved in a liquid is directly proportional to the partial pressure of that gas above the liquid surface”. This statement pertaining to the solubility of gases in liquid is the ______________ law?
A. Raoult’s
B. Henry’s
C. Amagat’s
D. None of these - The expression for entropy change given by, ΔS = nR ln (V2/V1) + nCv ln (T2/T1) is valid for ______________________?
A. Reversible isothermal volume change
B. Heating of a substance
C. Cooling of a substance
D. Simultaneous heating and expansion of an ideal gas - All gases except ____________ shows a cooling effect during throttling process at atmospheric temperature and pressure?
A. Oxygen
B. Nitrogen
C. Air
D. Hydrogen - The value of Cp & Cv respectively for monatomic gases in Kcal/kg Mole.°K are________________?
A. 5 & 3
B. 3.987 & 1.987
C. 1.987 & 0.66
D. 0.66 & 1.987 - Gases are cooled in Joule-Thomson expansion, when it is _____________ inversion temperature?
A. Below
B. At
C. Above
D. Either B. or C. - Near their critical temperatures, all gases occupy volumes _____________ that of the ideal gas?
A. Less than
B. Same as
C. More than
D. Half
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