Capillary action is the process of a liquid wicking up a tube of small diameter, or capillary, when the capillary is placed into the liquid. Capillary action is at work when plants draw water from their roots into their leaves, when a cotton towel is used to dry off skin, and a paper towel absorbs a spill on the kitchen floor.
A glass capillary is placed into a bowl of liquid. In which scenario is the liquid in the capillary most likely to have a convex meniscus?
a) The liquid salad oil b) The liquid is ethanol c) The liquid is vinegar d) The liquid is apple juice