Assertion: A full isotropic vessel with $α_{v} = 3 \times 1 0^{- 5} K^{- 1}$ containing a liquid with $γ_{l} = 7 \times 1 0^{- 5} K^{- 1}$ develops space below its rim on gentle heating.
Reason: To first order, the vessel capacity grows with coefficient $3 α_{v}$ , which exceeds $γ_{l}$ .

Question

Assertion: A full isotropic vessel with $α_{v} = 3 \times 1 0^{- 5} K^{- 1}$ containing a liquid with $γ_{l} = 7 \times 1 0^{- 5} K^{- 1}$ develops space below its rim on gentle heating.

Reason: To first order, the vessel capacity grows with coefficient $3 α_{v}$ , which exceeds $γ_{l}$ .

TestHub · Accepted Answer

γ ν ​ = 3 α ν ​ = 9 × 1 0 − 5 K − 1 . Since γ ν ​ > γ l ​ , capacity increases more than liquid volume. A gap develops. Both claims are true and Reason explains Assertion.

Physics - Heat & Thermo Question with Solution | TestHub

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