Question

Metal pipes are used to carry water, sometimes burst in the winter because

• A. Metal contracts more than water
• B. Water expands when it freezes
• C. Outside of the pipe expands more than inside
• D. Outside of the pipe contracts more than the inside

Answer 1

The correct option is B

Water expands when it freezes

Explanation of correct option:

1. (B) water expands when it freezes is the correct answer.
2. water expands when it freezes because water has that special property. Due to this reason, pipes burst in the winter because the volume of water get increases.

Explanation of incorrect options:

1. (A)The given statement is incorrect because water is liquid, the expansion coefficient of water is greater than the metal so water also contracts more quickly than the metals.
2. (C) and (D) given statements are incorrect because water expands and contracts at the same rate whether inside or outside the pipe

Hence, Option (b) is the correct answer.