A100. kmol/hr stream that is 96.0 mole% carbon tetrachloride (ccl4) and 4.0 mole% carbon disulfide (cs2) is to be produced from the bottom of a distillation column. the feed to the column is 83.0 mole% ccl4 and 17.0 mol% cs2 ,and 2.5 mol% of the ccl4 entering the column is recovered in the overhead stream leaving the top of the column. what is the mole fraction of ccl4 in the stream that is leaving the top of the distillation column?

the ozone layer acts as a filter for the shorter wavelength and highly hazardous ultraviolet radiation (uvr) from the sun, protecting life on earth from its potentially harmful effects. when the sky is clear, there is an inverse relationship between stratospheric ozone and solar uvr measured at the earth's surface.

gold is my favorite solid.

the cold front replaces the warmer air at the ground level changing the wind to be breezy and denser.there is also an immediate drop in the temperature.