A thin glass vessel ( α g = 5 × 1 0 − 5 / ∘ C ) is partially filled with a liquid ( γ = 1.3 × 1 0 − 4 / ∘ C ) at 20°C. If this vessel is heated to 4 0 ∘ C ; the level of liquid in the vessel will:

Question

A thin glass vessel ( α g ​ = 5 × 1 0 − 5 / ∘ C ) is partially filled with a liquid ( γ ​ = 1.3 × 1 0 − 4 / ∘ C ) at 20°C. If this vessel is heated to 4 0 ∘ C ; the level of liquid in the vessel will:

TestHub · Accepted Answer

γ g ​ = 3 α g ​ = 3 × 5 × 1 0 − 5 = 15 × 1 0 − 5 / ∘ C γ L ​ = 1.3 × 1 0 − 4 = 13 × 1 0 − 5 / ∘ C γ g ​ > γ L ​ , so the vessel volume grows more than the liquid volume. Level of liquid decreases. Answer B.

Physics - Heat & Thermo Question with Solution | TestHub

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