The energy of molecular motion appears as________________?

Related Mcqs:

1. 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

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

   A. 29.27 J/kmol°K
   B. 83.14J/kmol°K
   C. 848J/kmol°K
   D. All J/kmol °K
   E. 735 J/kmol °K

3. 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

4. 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.

5. 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

6. A perpetual motion machine is___________________?

   A. a thermodynamic machine
   B. a non-thermodynamic machine
   C. a hypothetical machine
   D. a hypothetical machine whose opera-tion would violate the laws of thermodynamics
   E. an inefficient machine

7. The unit of energy in S.I. units is________________?

   A. watt
   B. joule
   C. joule/s
   D. joule/m
   E. joule m.

8. Kinetic energy of the molecules in terms of absolute temperature (T) is proportional to________________?

   A. T
   B. j
   C. J2
   D. Vr
   E. 1/Vr

9. 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

10. Change in internal energy in a closed system is equal to heat transferred if the reversible process takes place at constant_______________?

    A. pressure
    B. temperature
    C. volume
    D. internal energy
    E. entropy