You Discover That Your Roommate Has Left a Half-Full Bottle

question 77

Multiple Choice

You discover that your roommate has left a half-full bottle of cola on the kitchen counter without replacing the cap - AGAIN!. Not surprisingly, the cola is now flat (all carbonation is gone) .  Why did this happen?

• A)The solubility of the carbon dioxide gas in the cola has decreased due to it being left at a lower pressure.
• B)Warm bottles of cola will lose their carbonation faster than cold ones, even if the lid had been left on.
• C)Oxygen in the atmosphere reacts with the cola, eliminating the carbonation.
• D)The solubility of the carbon dioxide gas diffuses through the wall of the bottle.