Penetration theory states that the mass transfer co-coefficient is equal to (where, De is diffusivity and ‘t’ is time) ?

Related Mcqs:

Though, theoretically the adsorption & desorption isotherms is expected to coincide but sometimes at least a part of the isotherms does not coincide and this phenomenon is known as adsorption hysteresis. In such cases, the desorption equilibrium pressure is ______________ that obtained for adsorption?

A. Lower than B. Higher than C. Same as D. Either same or higher than...

Flash distillation is _______________________?

A. Same as differential distillation B. Used for multi-component systems like crude refining C. Same as simple distillation D. Most useful for handling binary systems...

Lewis number (Le) is____________________?

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

Use of packed towers for distillation is generally limited to the____________________?

A. Small sizes B. Multi-component distillation C. High pressure operation D. Vacuum distillation...

Flash distillation is suitable for the separation of components_________________?

A. Having very close boiling points B. Which form maximum boiling azeotrope C. Having very wide boiling points D. Which form minimum boiling azeotrope...