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

Related Mcqs:

1. The pressure’of a gas in terms of its mean kinetic energy per unit volume E is equal to________________?

   A. E/3
   B. E/2
   C. 3E/4
   D. 2E/3
   E. 5E/4

2. According to kinetic theory of gases, the absolute zero temperature is attained when___________________?

   A. volume of the gas is zero
   B. pressure of the gas is zero
   C. kinetic energy of the molecules is zero
   D. specific heat of gas is zero
   E. mass is zero

3. Kinetic theory of gases assumes that the collisions between the molecules are________________?

   A. perfectly elastic
   B. perfectly inelastic
   C. partly elastic
   D. partly inelastic
   E. partly elastic and partly inelastic

4. Temperature of a gas is produced due to________________?

   A. its heating value
   B. kinetic energy of molecules
   C. repulsion of molecules
   D. attraction of molecules
   E. surface tension of molecules

5. For which of the following substances, the internal energy and enthalpy are the functions of temperature only____________________?

   A. any gas
   B. saturated steam
   C. water
   D. perfect gas
   E. superheated steam

6. The condition of perfect vacuum, i.e., absolute zero pressure can be attained at ____________________?

   A. a temperature of – 273.16°C
   B. a temperature of 0°C
   C. a temperature of 273 °K
   D. a negative pressure and 0°C temperature
   E. can’t be attained

7. Absolute zero pressure will occur _____________________?

   A. at sea level
   B. at the center of the earth
   C. when molecular momentum of the system becomes zero
   D. under vacuum conditions
   E. at a temperature of – 273 °K

8. According to Gay-Lussac law for a perfect gas, the absolute pressure of given mass varies directly as____________________?

   A. temperature
   B. absolute
   C. absolute temperature, if volume is kept constant
   D. volume, if temperature is kept constant
   E. remains constant,if volume and temperature are kept constant

9. According to Dalton’s law, the total pres sure of the mixture of gases is equal to________________?

   A. greater of the partial pressures of all
   B. average of the partial pressures of all
   C. sum of the partial pressures of all
   D. sum of the partial pressures of all divided by average molecular weight
   E. atmospheric pressure

10. I kgf/cm2 is equal to________________?

    A. 760 mm Hg
    B. zero mm Hg
    C. 735.6 mm Hg
    D. 1 mm Hg
    E. lOOmmHg