With increase in pressure (above atmospheric pressure), the Cp of a gas_____________________?

Related Mcqs:

1. Atmospheric pollution caused by the exhaust gas of supersonic transport air-crafts is mostly in the atmospheric region called________________?

   A. Thermosphere
   B. Stratosphere
   C. Troposphere
   D. Mesosphere

2. All gases except ____________ shows a cooling effect during throttling process at atmospheric temperature and pressure?

   A. Oxygen
   B. Nitrogen
   C. Air
   D. Hydrogen

3. All gases during throttling process at atmospheric temperature and pressure show a cooling effect except__________________?

   A. CO2
   B. H2
   C. O2
   D. N2

4. Heating of water under atmospheric pressure is an ______________ process?

   A. Isochoric
   B. Isobaric
   C. Adiabatic
   D. Isothermal

5. Heat capacity of air can be approximately expressed as, Cp = 26.693 + 7.365 x10-3 T, where, Cp is in J/mole.K and T is in K. The heat given off by 1 mole of air when cooled at atmospheric pressure from 500°C to – 100°C is ____________________?

   A. 10.73 kJ
   B. 16.15 kJ
   C. 18.11 kJ
   D. 18.33 kJ

6. Atmospheric pressure corresponds to a hydrostatic head of_________________?

   A. 13.6 cms of Hg
   B. 34 ft ofH2O
   C. 1 metre of H2O
   D. 13.6 metres of Hg

7. Consider the equilibrium A(g) + B(g) = AB(g). When the partial pressure of A is 10-2 atm, the partial pressure of B is 10-3 atm and the partial pressure of AB is 1 atm, the equilibrium constant ‘K’ is____________________?

   A. 10 atm-1
   B. 105 atm-1
   C. 10 (dimensionless)
   D. 105 (dimensionless)

8. 500 c.c. each of hydrogen at 700 mm Hg pressure and oxygen at 600 mm Hg pressure are put together in a vessel of 1 litre capacity. The final pressure of the gas mixture will be _____________ mm Hg?

   A. 650
   B. 700
   C. 600
   D. 375

9. The vapour pressure of water is given by, in Psat = A – (5000/T), where A is a constant, Psat is the vapour pressure in atm. and T is the temperature in K. The vapor pressure of water in atm. at 50°C is approximately__________________?

   A. 0.07
   B. 0.09
   C. 0.11
   D. 0.13

10. “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