Convection is a means of heat transfer that involves fluids, such as liquids or gasses. The process of convection is responsible for air and water currents as in the illustration. As the temperature of fluids increases their molecular motion increases, therefore as fluids warm their density decreases. A classroom demonstration of convection involves placing a small covered container filled with warm water to which food coloring has been added into a large container of cold water. Based on the information in the prompt, select the observations that would be expected in this demonstration. The warm water will rise out of its container when uncovered. The cold water will flow into the container of warm water. The warm water will sink as it cools. The temperature of the warm water will decrease to the initial temperature of the cold water. Eventually all of the water will reach thermal equilibrium. The final temperature will be the average of both initial temperatures.

Question

Physics

Tristen Oconnell

14 January, 19:11

Convection is a means of heat transfer that involves fluids, such as liquids or gasses. The process of convection is responsible for air and water currents as in the illustration. As the temperature of fluids increases their molecular motion increases, therefore as fluids warm their density decreases. A classroom demonstration of convection involves placing a small covered container filled with warm water to which food coloring has been added into a large container of cold water. Based on the information in the prompt, select the observations that would be expected in this demonstration. The warm water will rise out of its container when uncovered. The cold water will flow into the container of warm water. The warm water will sink as it cools. The temperature of the warm water will decrease to the initial temperature of the cold water. Eventually all of the water will reach thermal equilibrium. The final temperature will be the average of both initial temperatures.

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Answers (2)

Know the Answer?

Dallas Hurley · Answer 1

Correct answer is B.

Deegan Khan · Answer 2

Eventually all of the water will reach thermal equilibrium. The final temperature will be the average of both initial temperatures.

Explanation:

If two liquids, one hot (that is, at high temperature) is in indirect contact with another liquid which is cold (that is, at low temperature), a flux of heat will be transferred from the hot water to the cold water which will result in hot liquid losing temperature and cold liquid increasing its temperature. This flux will continue until an equilibrium is met and the temperatures are equal.