40. In thermal energy transfer by convection, when the bottom of a fluid is heated, 1 The molecules in that area gain thermal energy, expand, become less dense and rise. Colder denser fluid then descends to take its place. 2 The fluid in the heated region gains thermal energy, expands, becomes lighter and rises. Colder heavier fluid then descends to take its place. 3 The fluid in the heated region gains thermal energy, expands, becomes less dense and rises. Colder denser fluid then descends to take its place.

40. In thermal energy transfer by convection, when the bottom of a fluid is heated, 1 The molecules in that area gain thermal energy, expand, become less dense and rise. Colder denser fluid then descends to take its place. 2 The fluid in the heated region gains thermal energy, expands, becomes lighter and rises. Colder heavier fluid then descends to take its place. 3 The fluid in the heated region gains thermal energy, expands, becomes less dense and rises. Colder denser fluid then descends to take its place.

College Physics

10th Edition

ISBN:9781285737027

Author:Raymond A. Serway, Chris Vuille

Publisher:Raymond A. Serway, Chris Vuille

Chapter11: Energy In Thermal Processes

Section: Chapter Questions

Problem 6WUE

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