Question

A person opens a 2-liter bottle of cola at a picnic. If the cap is left off the bottle, the cola will become 'flat' or lose it's carbonation. Which statement below BEST summarizes why the cap must be kept tightly in place if the cola is to remain fresh? A) The cap prevents the liquid in the cola from evaporating. B) The cap keeps the atmospheric gases and liquid from mixing in the bottle. C) The cap keeps warm air from entering the two-liter bottle and raising the temperature of the cola solution. D) The cap keeps the pressure of the gas in the bottle at a high level preventing carbon dioxide from leaving the solution.

Answer 1

It is d) The cap keeps the pressure of the gas in the bottle at a high level preventing carbon dioxide from leaving the solution.

Answer 2

i think the answer is D