Mass Transfer-Data Intensity 1 | Multiple Questions and Answers

6.	For the same system, if the same liquid used in an absorber is decreased, the tower height will_?

	A.	Increase
	B.	Decrease
	C.	Remain unaffected
	D.	Decrease or increase; depends on the type of liquid

7.	The equation, NA = (DAB . Pt /RTZ . PBM) (PA1 � PA2) is for_______?

	A.	Fick�s second law of diffusion
	B.	Steady state diffusion for stagnant case
	C.	Liquid M.T.C. by Higbie penetration theory
	D.	None of these

8.	Perforated plate towers are unique for solvent extraction because, they provide___?

	A.	Higher contact area
	B.	Better contact of the phase
	C.	Repeated coalescence & redispersion of the drop phase
	D.	None of Above

9.	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) ?

	A.	G/(FG . a)
	B.	FG/(G . a)
	C.	(G . a)/FG
	D.	L/(FG . G)