Question 2561. Experiments were conducted to determine the flux of a species A in a stagnant medium across a gas-liquid interface. The overall mass transfer co-efficient based on the liquid side for dilute systems for the above was estimated to be 4 × 10-3 kg mole/m2.s. The equilibrium data for the system is given as y = 2x. The flux across the interface (in kg mole/m2 .s) for bulk concentrations of A in gas phase and liquid phase as y = 0.4 and x = 0.01 respectively is _________________________?

Question 2562. When the gas to be dissolved in liquid is a/an ___________________ then normally co-current adsorber are used?

Question 2563. _______________ equation applies to diffusivities in liquids?

Question 2564. The relative volatility of a binary mixture at constant temperature _________________ the total pressure?

Question 2565. The mass transfer co-efficient for a solid sphere of radius ‘a’ dissolving in a large volume of quiescent liquid, in which „D’ is the diffusivity of solute, is _____________________?

Question 2566. Cox chart, which is useful in the design of distillation column particularly for petroleum hydrocarbons, is a plot of (where, P = vapor pressure, T = temperature) ?

Question 2567. For the same system, if the same liquid used in an absorber is decreased, the tower height will__________________?

Question 2568. For the gas absorption, the height of a transfer unit, based on the gas phase is given by (G: superficial molar gas velocity, L: superficial molar liquid velocity, FG: mass transfer co-efficient, moles/m2, a: interfacial area per unit volume of tower) ?

Question 2569. The commonly used solvent in supercritical extraction is_____________________?

Question 2570. Pore size of the molecular sieve 5A is ____________________ mm ?