2) Why does the bottle collapse when sitting on the counter? a) The inside and outside pressures on the bottle are equal
b) Pressure atmosphere < pressure of gas in bottle
c) Vapor pressure is crushing the bottle
d) Pressure atmosphere > pressure of gas in bottle ?

Some liquids can be distilled, but only at temperatures that are so high that it is impractical, or so high the compound decomposes. explain why distillation such compounds at significantly less than atmospheric pressure (some degree of vacuum) would solve this problem.