The Coefficient of Linear Expansion of Copper Is 17 ×

Multiple Choice

The coefficient of linear expansion of copper is 17 × 10^-6 K^-1 and that of steel is 12 × 10^-6 K^-1. At 12°C a steel rod has a diameter of 2.540 cm and a copper pipe has a diameter of 2.536 cm. To what temperature must the copper pipe be heated in order for the unheated rod to fit snugly in the pipe?

A) 53°C
B) 81°C
C) 93°C
D) 105°C
E) 143°C