The value of the product of molecular weight and the gas characteristic constant for all the gases in S.I. units is________________?

Related Mcqs:

1. The value of the product of molecular weight and the gas characteristic constant for all the gases in M.K.S. unit is______________________?

   A. 29.27 kgfm/mol°K
   B. 8314kgfm/mol°K
   C. 848kgfm/mol°K
   D. 427kgfm/mol°K
   E. 735 kgfm/mol°K

2. Universal gas constant is defined as equal to product of the molecular weight of the gas and_______________?

   A. specific heat at constant pressure
   B. specific heat at constant volume
   C. ratio of two specific heats
   D. gas constant
   E. unity.

3. Characteristic gas constant of a gas is equal to______________________?

   A. C/Cv
   B. Cv/Cp
   C. Cp – Cv
   D. Cp + Cv
   E. Cp x Cv

4. The statement that molecular weights of all gases occupy the same volume is known as________________?

   A. Avogadro’s hypothesis
   B. Dalton’s law
   C. Gas law
   D. Law of thermodynamics
   E. Joule’s law

5. A perfect gas at 27°C is heated at constant pressure till its volume is double. The final temperature is________________?

   A. 54°C
   B. 327°C
   C. 108°C
   D. 654°C
   E. 600°C

6. Molecular volume of any perfect gas at 600 x 103 N/m2 and 27°C will be ____________________?

   A. 4.17m3/kgmol
   B. 400 m3/kg mol
   C. 0.15 m3/kg mol
   D. 41.7 m3/kg mol
   E. 417m3/kgmol

7. A gas is compressed in a cylinder by a movable piston to a volume one-half its original volume. During the process 300 kJ heat left the gas and internal energy remained same. The work done on gas in Nm will be___________________?

   A. 300 Nm
   B. 300,000 Nm
   C. 30 Nm
   D. 3000 Nm
   E. 30,000 Nm

8. Boyle’s law i.e. pV = constant is applicable to gases under ___________________?

   A. all ranges of pressures
   B. only small range of pressures
   C. high range of pressures
   D. steady change of pressures
   E. atmospheric conditions

9. According to which law, all perfect gases change in volume by l/273th of their original volume at 0°C for every 1°C change in temperature when pressure remains constant ____________________?

   A. Joule’s law
   B. Boyle’s law
   C. Regnault’s law
   D. Gay-Lussac law
   E. Charles’ law

10. Which of the following parameters is constant for a mole for most of the gases at a given temperature and pressure___________________?

    A. enthalpy
    B. volume
    C. mass
    D. entropy
    E. specific volume