Question

. A length of lead piping is 50.0 m long at a temperature of 16°C. When hot water flows through it the temperature of the pipe rises to 80°C. Determine the length of the hot pipe if the coefficient of linear expansion of lead is 29 × 10 -6 K -

Answer 1

𝑑𝑙 = 𝛼𝑙Δ𝑇

𝑑𝑙 = 29 ∙ 10-6 ∙ 50 ∙ (80 - 16)

𝑑𝑙 =0.0928 𝑚

Length = L + 𝑑𝑙

Length = 50 + 0.0928

Length = 50.0928 m