A pipe of length 9 m increases in length by 1.7 cm when its temperature is increased by 99°F.What is its coefficient of linear expansion? A) 34 × 10−⁶/°C B) 69 × 10−⁶/°C C) 62 × 10−⁶/°C D) 26 × 10−⁶/°C E) 43 × 10−⁶/°C

Question

Quizplus · Accepted Answer

The coefficient of linear expansion (α) is calculated using the formula: α = ΔL / (L₀ * ΔT). Convert 99°F to Celsius (ΔT = 55°C), and use ΔL = 0.017 m, L₀ = 9 m. α = 0.017 / (9 * 55) = 34 × 10−6/°C.

A Pipe of Length 9 M Increases in Length by 1.7