Which of the following statement is false?

a.
at pseudo-steady state diffusion, the level of liquid or the diameter of napthalene ball changes fast

b.
none of the above

c.
at pseudo-steady state diffusion, the level of liquid or the diameter of napthalene ball changes slowly

d.
at steady state diffusion, the level of liquid or the diameter of napthalene ball does not change

A100 kmol/h stream that is 97 mole% carbon tetrachloride (ccl4) and 3% carbon disulfide (cs2) is to be recovered from the bottom of a distillation column. the feed to the column is 16 mole% cs2 and 84% ccl4, and 2% of the ccl4 entering the column is contained in the overhead stream leaving the top of the column. calculate the mass and mole fractions of ccl4 in the overhead stream, and determine the molar flow rates of ccl4 and cs2 in the overhead and feed streams. 12. mw_ccla- 153.82; mw_cs2-76.14.

How many moles of cu are needed to react with 5.8 moles of agno3? cu + 2 agno3 → cu(no3)2 + 2 ag

Which liquid (h2o, h2o + soap, or h2o + salt) has the strongest cohesion and adhesion? (need now plz)