Water properties quiz

water has a high specific heat

Specific heat is the amount of heat a substance must absorb to increase 1 gram of the substance by 1 degree Celsius, so water is able to resist changes in temperature bc it takes more energy to increase the temperature of water at slower rate.

water has a high heat vaporization

Evaporating water requires the absorption of relatively large amount of heat and water’s high specific heat prevents it from evaporating easily.

water is the universal solvent

Dissolves all polar and ionic substances due to its polarity and hydrogen bonds

ice is less dense than water

When water freezes, the water molecules form a crystalline structure. The structure is maintained by hydrogen bonding. The orientation of hydrogen bonds causes molecules to push farther apart, which lowers the density.

capillary action

results from the forces of cohesion and adhesion attraction; the ability water has to flow upward against the force of gravity, due to cohesion and adhesion properties.

ie: transpiration is the process of the movement of water through plants

surface tension

property of the surface of liquid that allows it to resist an external force 

molecules of water tend to attract one another

true

cohesion (cohesive)

ability of water to stick together

adhesion (adhesive)

ability of water to adhere to other molecules

dehydration

occurs when two molecules join and releases water as a product

Dehydration formula reaction

A → B + H20

• A is the reactant that is broken down into the product of B+ water

• the process require energy 

properties of water

• the oxygen atom in a molecule of water exerts a greater pull on the shared electrons than do the hydrogen atoms, one side of the molecule has a negative charger and other side has a positive charge

• water polarity dependent on the asymmetrical form, and is polar

• water structure is an example of hydrogen bonding