capillary action Flashcards
1
Q
what is capillary action?
A
capillary action is the spontaneous movement of a liquid through a narrow tube, independent of gravity
2
Q
how does capillary action work?
A
cohesion forces (hydrogen bonds) water molecules, as well as adhesion forces (hydrogen bonds) among water molecules and cell wall of the xylem, ensures continual movement
3
Q
what is the function of capillary action?
A
to enhances upward movement during transpiration pull
4
Q
what is the relationship between the diameter of the tube, and the effect of capillary action?
A
the narrower the tube, the greater the effect of capillary action
