During a very cold winter, water pipes sometimes burst because?

Question

during a very cold winter, water pipes sometimes burst because

a. the ground contracts when colder, pulling pipes apart.

b. water expands when freezing.

c. water contracts with freezing.

d.none of the above

Answer 1

During a very cold winter, water pipes sometimes burst because:

b. water expands when freezing.

Most liquids have a quite simple behavior when they are cooled (at a fixed pressure): they shrink. The liquid contracts as it is cooled; because the molecules are moving slower they are less able to overcome the attractive intermolecular forces drawing them closer to each other. Then the freezing temperature is reached, and the substance solidifies, which causes it to contract some more because crystalline solids are usually tightly packed.

Water is one of the few exceptions to this behavior. When liquid water is cooled, it contracts like one would expect until a temperature of approximately 4 degrees Celsius is reached. After that, it expands slightly until it reaches the freezing point, and then when it freezes it expands by approximately 9%.

This unusual behavior has its origin in the structure of the water molecule. There is a strong tendency to form a network of hydrogen bonds, where each hydrogen atom is in a line between two oxygen atoms. This hydrogen bonding tendency gets stronger as the temperature gets lower (because there is less thermal energy to shake the hydrogen bonds out of position). The ice structure is completely hydrogen bonded, and these bonds force the crystalline structure to be very "open".

Answer 2

b

its the same as when rocks are freeze thaw weathered

Answer 3

B

Answer 4

b. water expands when freezing

Answer 5

''b' is the answer .

When water (liquid) changes its  physical state to ice (solid), it expands by about 10%. Hence pipes actually burst on freezing, but it is not evident until the ice changes back to water

, when the burst becomes obvious.

Answer 6

water expands when freezing