The government, through the FCC (Federal Communications Commission), has set rules and guidelines for the use of radio equipment to better control wireless frequency "traffic". A wireless server gives off 3.3 X 10-24 joules of energy. What is the wavelength of this server in meters?
Answer
A 22x10-57 m
B 60 X 10-52 m
5.0 X 100m
D 9.1 X1031m

Iknow #2 is d. i just need to know why

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 are evaporation and sublimation similar? a both involve the formation of a gas. b both release energy to the surroundings. c both take place throughout a solid. d both take place at the surface of a liquid.