Might reverse osmosis be used to obtain fresh water from a sugar-water solution?
A) No, osmosis and reverse osmosis only apply to aqueous solutions containing ions.
B) Yes, reverse osmosis can be applied to any aqueous solution for the generation of fresh water.
C) No, the molecular attractions between sugar and water are too strong.
D) Yes, because sugar molecules are smaller than sodium or chloride ions.
Answer: B
You might also like to view...
Day and night cycles are caused by the ____ of Earth
a. revolution b. location c. axis tilt d. rotation e. boundaries
A fountain sends water to a height of 100 meters. What must be the pressurization (above atmospheric) of the water system? 1 atm= 1.01 × 105 N/m2.
A. 1.0 atm B. 4.2 atm C. 7.2 atm D. 9.7 atm E. 8.2 atm
A planar cross section through two spherical waves emanating from the sources S1 and S2 in the plane is shown in the figure. The black circles are one and two wavelengths from their respective sources. The lighter circles are one half and one and a half wavelengths distant from their respective sources. If the phase at S1 and S2 is zero at this instant, and the waves shown arriving at P1 both arrive with amplitude A, the magnitude of the phase angle of each wave at point P1 (in radians) is
A. 0. B. ?. C. 2?. D. 3?. E. ?/2.
A space station in the form of a large wheel, 120 m in diameter, rotates to provide an "artificial gravity" of 3.00 m/s2 for persons located at the outer rim. Find the rotational frequency of the wheel (in revolutions per minute) that will produce this effect