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γ₂ = 10⁻³/°C
ΔV = ΔV₂ - ΔV₁
ΔV = V₂₀ γ₂ (T₂ - T₁) - V₁₀ γ₁ (T₂ - T₁)
ΔV = (V₂₀ γ₂ - V₁₀ γ₁) (T₂ - T₁)
ΔV = (0,9 10⁻³ - 1 2,7 10⁻⁵) (70 - 30)
ΔV = (0,9 10⁻³ - 0,027 10⁻³) (40)
ΔV = (0,9 10⁻³ - 0,027 10⁻³) (40)
ΔV = (0,873 10⁻³) (40)
ΔV = 3,492 10⁻² liter
ΔV = 34,92 ml = 34,92 cm³
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