A glass rod that is 1.0 m long at 0^oC increases its length by 0.68 mm when heated to 80^oC. The coefficient of linear expansion of this glass is approximately

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Quizplus · Accepted Answer

The coefficient of linear expansion (α) is calculated using the formula: α = ΔL / (L₀ * ΔT), where ΔL is the change in length, L₀ is the original length, and ΔT is the change in temperature. Here, ΔL = 0.68 mm = 0.00068 m, L₀ = 1.0 m, and ΔT = 80°C. So, α = 0.00068 / (1.0 * 80) = 8.5 × 10⁻⁶/°C.

A Glass Rod That Is 1