Pick out the wrong unit conversion of mass transfer co-efficient?

Related Mcqs:

1. Pick out the wrong unit conversion of heat transfer co-efficient?

   A. 1 kcal/m2.hr.°C = 0.2048 BTU/ft2.hr. °F. = 1.163 W/m2.°K B. 1 kcal/m2.hr.°K = 1.163 W/m2.°C C. 1 W/m2.°C = 0.1761 BTU/ft2.hr.°F. D. 1 BTU/ft2.hr.°F = 4.88 kcal/m2.hr.°C = 20.44 kJ/m2.hr°C = 5.678 W/m2.°C...

2. Pick out the wrong unit conversion of heat transfer rate?

   A. 1 kcal/hr= 1.163 Watt B. 1 Watt = 1.163 kcal/hr C. 1 BTU/ft2.hr = 2.712 kcal/m2.hr D. 1 kcal/m2.hr = 0.3687 BTU/ft2.hr = 1.163 Watt/m2...

3. Pick out the wrong unit conversion of temperature?

   A. °R = 273 + °F B. Temperature difference of 1°K = 1°C = 9/5°F C. °C = (F- 32) × 0.555 D. °F = (°C + 17.778) × 1.8...

4. Pick out the wrong unit conversion of thermal conductivity ?

   A. 1 BTU/ft2.hr.°F/ft = 1.488 kcal/m2. hr.°C/m B. 1 BTU/ft2.hr.°F/inch = 1.488 kcal/m2. hr.°C/m C. 1 kcal/m.hr.°C = 0.672 BTU/ft.hr.°F = 1.163 W/m. °K D. 1 W/cm.°C = 85.985 kcal/m.hr.°C = 57.779 BTU/ft.hr.°F...

5. Pick out the wrong unit conversion of calorific value?

   A. 1 kcal/kg = 1.8 BTU/lb = 4.186 kJ/kg B. 1 BTU/ft3 = 8.9 kcal/m3 = 0.038 MJ/m3 C. 1 BTU/lb = 2.3 kcal/kg D. 1 kcal/m3 = 0.1124 BTU/ft3...

6. Pick out the wrong statement. A. The conversion for a gas phase reaction increases with decrease in pressure, if there is an increase in volume accompanying the reaction________________?

   B. With increase in temperature, the equilibrium constant increases for an exothermic reaction C. The equilibrium constant of a reaction depends upon temperature only D. The conversion for a gas phase reaction increases with increase in pressure, if there is a decrease in volume accompanying the reaction...

7. Pure aniline is evaporating through a stagnant air film of 1 mm thickness at 300 K and a total pressure of 100 KPa. The vapor pressure of aniline at 300 K is 0.1 KPa. The total molar concentration under these conditions is 40.1 mole/m3. The diffusivity of aniline in air is 0.74 × 10-5m2/s. The numerical value of mass transfer co-efficient is 7.4 × 10-3. Its units are_______________________?

   A. m/s B. cm/s C. mole/m2.s.Pa D. k.mole/m2.s.Pa...

8. In case of a ternary system involving two liquid components and a solute, the ratio of the concentration of the solute in the two phases at equilibrium is called the distribution co-efficient. The distribution co-efficient depends upon the______________?

   A. Solute concentration B. Temperature C. Both A. & B. D. Neither A. nor B....

9. Joule-Thomson co-efficient which is defined as, η = (∂T/∂P)H = 1/Cp (∂H/∂T)P, changes sign at a temperature known as inversion temperature. The value of Joule-Thomson co-efficient at inversion temperature is ___________________?

   A. 0 B. ∞ C. +ve D. -ve...

10. Free energy, fugacity and activity co-efficient are all affected by change in the temperature. The fugacity co-efficient of a gas at constant pressure ______________ with the increase of reduced temperature?

    A. Decreases B. Increases C. Remains constant D. Decreases logarithmically...