Avogadro’s number is equal to__________________?

Related Mcqs:

Quartz is__________________?

A. Stable form of silica upto 870°C B. Converted to Tridymite on firing between 870 to 1470°C C. Transformed to Cristobalite on heating above 1470°C D. All A., B. and C....

1 BTU/lb.←°F is equivalent to ____________ kcal/kg.°C?

A. 1 B. 2.42 C. 1.987 D. 4.97...

Magnesite refractories are used for the construction of those furnaces, which are_______________?

A. Not required to resist the corrosive action of basic slag B. Not subjected to fluctuation in temperature C. Used for raising & maintaining high temperature D. Both B. and C....

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...

The maximum adiabatic flame temperature of fuels in air is ____________ the maximum flame temperature in pure oxygen?

A. Lower than B. Higher than C. Same as D. Not related to...