Molality is defined as the number of gm moles of solute per _________________ of solvent ?

Related Mcqs:

In a single stage extraction process, 10 kg of pure solvent S (containing no solute A) is mixed with 30 kg of feed F containing A at a mass fraction xf = 0.2. The mixture splits into an extract phase E and a raffinate phase R containing A at xB = 0.5 and xR = 0.05 respectively. The total mass of the extract phase is (in Kg) ?

A. 6.89 B. 8.89 C. 10 D. 8.25...

Which of the following can be calculated theoretically using steam table and Dalton’s law of partial pressure; if the relative humidity and dry bulb temperature of moist air is known ?

A. Dew point B. Humidity ratio C. Wet bulb temperature D. None of these...

Lewis number (Le) is____________________?

A. Sc × Pr B. Pr × St C. Sh × Pr D. St × Sh...

The drying time between fixed moisture content within diffusion controlled ‘falling rate period’ is proportional to (assuming that drying occurs from all surfaces of the solid) (where, T = thickness of the solid) ?

A. √T B. T C. T2 D. T3...

For a single component absorber, the operating line is straight only when plotted in term of ______________ units?

A. Partial pressure B. Mole ratio C. Mole fraction D. None of these...