The polar jet stream is an air current that flows across North America. It flows much faster in winter than it does in summer. Why is it faster in the winter?

A: Northern air has more oxygen in winter.

B: Northern air is warmer in winter.

C: Northern air is colder in winter.

D: Northern air is drier in winter.

Calculate the mass of silver needed to react with chlorine to produce 126g if silver chloride?

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.

Which samples do the atoms have the least kinetic energy