At different places on earth, depending on elevation, air pressure varies. which of the following reflects air pressure at any point on earth?
a. carbon dioxide levels in the air
b. the weight of the atmosphere
c. the strength of earth's magnetic field
d. moisture (water vapor) in the air

Phosgene (carbonyl chloride), cocl2, is an extremely toxic gas that is used in manufacturing certain dyes and plastics. phosgene can be produced by reacting carbon monoxide and chlorine gas at high temperatures: co(g) cl2(g)⇌cocl2(g) carbon monoxide and chlorine gas are allowed to react in a sealed vessel at 477 ∘c . at equilibrium, the concentrations were measured and the following results obtained: gas partial pressure (atm) co 0.830 cl2 1.30 cocl2 0.220 what is the equilibrium constant, kp, of this reaction