If 1 Nm3 of O2 contains ‘N’ number of molecules, then number of molecules in 2Nm3 of SO2 will be_________________?

Related Mcqs:

1. A butane isomerisation process produces 70 k.mole/hr of pure iso-butane. A purge stream removed continuously, contains 85% n-butane and 15% impurity (mole%). The feed stream is n-butane containing 1% impurity (mole%). The flow rate of the purge stream will be_________________?

   A. 3 kmole/hr
   B. 4 kmole/hr
   C. 5 kmole/hr
   D. 6 kmole/hr

2. Density of carbon dioxide is _________________ kg/Nm3 ?

   A. 44/22400
   B. 44/22.4
   C. 22.4/44
   D. None of these

3. Exposure to SO2 containing chimney gases results in the__________________?

   A. Reduction in strength of leather & cloth
   B. Acceleration of corrosion rates of metals
   C. Increased drying & hardening time of paints
   D. All A., B. and C.

4. Death may occur, when SO2 concentration in atmospheric air exceeds ______________ ppm?

   A. 20
   B. 100
   C. 400
   D. 200

5. pH value of a solution containing equal concentration of hydroxyl and hydrogen ions will be_________________?

   A. 0
   B. 10
   C. 7
   D. 14

6. The forces causing the vaporisation of liquid are derived from the Kinetic energy of translation of its molecules. The heat of vaporisation_________________?

   A. Increases with pressure rise
   B. Decreases with increasing pressure
   C. Becomes zero at the critical point
   D. Both B. & C.

7. Unrestrained expansion of an ideal gas does not result in its cooling due to the reason that the gas molecules ____________________?

   A. Do not lose energy on collision
   B. Are above the inversion temperature
   C. Do not exert attractive force on each other
   D. Do work equal to loss in kinetic energy

8. At a temperature of 0°K, the molecules of a gas have only _______________ energy?

   A. Rotational
   B. Vibrational
   C. Translational
   D. None of these

9. The molecules of a liquid which is in equilibrium with its vapor at its boiling point on an average have equal _____________ in the two phases?

   A. Potential energy
   B. Intermolecular forces
   C. Kinetic energy
   D. Total energy

10. At 100°C, water and methylcyclohexane both have vapour pressures of 1 atm. Also at 100°C, the latent heats of vaporisation of these compounds are 40.63 kJ/mole for water and 31.55 kJ/mole for methylcyclohexane. The vapour pressure of water at 150°C is 4.69 atm. At 150°C, the vapour pressure of methylcyclohexane would be expected to be_________________?

    A. Significantly less than 4.69 atm
    B. Nearly equal to 4.69 atm
    C. Significantly more than 4.69 atm
    D. Indeterminate due to lack of data