Question

.When heated from room temperature to higher temperature,aluminium bar expands faster than a bar of steel .What is the reason for this?

Answer 1

Answer:

The coefficient for aluminum is 2.4, twice that of iron or steel

Explanation:

Answer 2

Explanation:

because quotient of linear expansion of Aluminium is greater than the Steel quotient of linear expansion...if quotient of the expansion is more than that substance is expands more when it is heated...... if you cool the substance then it contracts more than to the remaining low quotient of linear expansion substances...