Statement I: When the top of a pond is frozen in air at − 1 5 ∘ C, the water at the bottom is at 4 ∘ C. Statement II: Water is densest at 4 ∘ C, so the water at 4 ∘ C sinks to the bottom.

The layer under the ice is at 0 ∘ C. The denser 4 ∘ C water settles at the bottom and the ice insulates the pond. Both statements are true. A.

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Physics - Heat & Thermo Question with Solution | TestHub

PhysicsHeat & ThermoHeat TransferEasy2 min

PhysicsEasystatement

Statement I: When the top of a pond is frozen in air at $- 1 5^{\circ}$ C, the water at the bottom is at $4^{\circ}$ C.

Statement II: Water is densest at $4^{\circ}$ C, so the water at $4^{\circ}$ C sinks to the bottom.

Options:

Answer:

Solution:

The layer under the ice is at $0^{\circ}$ C. The denser $4^{\circ}$ C water settles at the bottom and the ice insulates the pond. Both statements are true. A.

Subject:PhysicsTopic:Heat & ThermoSubtopic:Heat Transfer

⏱ 2m

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