Question

Metal A has acoefficient of linear expansion that is three times the coefficient of linear expansion of metal B how does their cofficient of area expantion compare?

Answer 1

Answer:

Table 1 lists representative values of the coefficient of linear expansion, which may have units of 1/ºC or 1/K. Because the size of a kelvin ...

Answer 2

Metal A has coefficient of linear thermal expansion as 3 times the coefficient of linear thermal expansion of Metal B. The coefficient of area expansion for metal A is 3 times the coefficient of area expansion of metal B.

1)Coefficient of linear expansion is the fractional change in length per degree of temperature change.

2)Considering the effect of pressure to be negligible, we may write αL = 1/L * (dL/dT)

3)Similarly the coefficient of area expansion is the fractional change in area per degree of temperature change.

4) Considering the effect of pressure to be negligible, we may write αA = 1/A * (dA/dT)