Consider a rectangular sheet of solid material of length ℓ = 9 cm and width d = 4 cm. The coefficient of linea…

Question

Consider a rectangular sheet of solid material of length $\ell = 9 \, \text{cm}$ and width $d = 4 \, \text{cm}$ . The coefficient of linear expansion is $\alpha = 3.1 \times 10^{-5} \, \text{K}^{-1}$ at room temperature and one atmospheric pressure. The mass of the sheet is $m = 0.1 \, \text{kg}$ and the specific heat capacity $C_v = 900 \, \text{J kg}^{-1}\text{K}^{-1}$ . If the amount of heat supplied to the material is $8.1 \times 10^2 \, \text{J}$ , then the change in area of the rectangular sheet is:

A
$2.0 \times 10^{-6} \, m^2$
B
$3.0 \times 10^{-7} \, m^2$
C
$6.0 \times 10^{-7} \, m^2$
D
$4.0 \times 10^{-7} \, m^2$

Accepted Answer

A. $$2.0 	imes 10^{-6} \, m^2$$

Answer

B. $$3.0 	imes 10^{-7} \, m^2$$

Answer

C. $$6.0 	imes 10^{-7} \, m^2$$

Answer

D. $$4.0 	imes 10^{-7} \, m^2$$

Answer & step-by-step solution

Practice more Heat, Temperature & Thermal Expansion questions

Related questions