Acopper rod is 0.450 m long. heat is added to the rod until it expands by 0.00130 m. how much did the temperature change? (unit=c)

170⁰C

Explanation:

α= ΔL/(lo×Δt)

arranging for Δt

Δt =ΔL/(lo×α)

here Δt is change in temperature, ΔL is change in length,lo is original length and is α coefficient of linear expansion and for copper its value is 17×10^-6

Δt =(0.00130)/(0.450×17×10^-6)

Δt=169.9⁰C

Δt= 170⁰C

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