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Chapter 14: Q8CQ (page 500)

What is the temperature of ice right after it is formed by freezing water?

Short Answer

Expert verified

The temperature of ice at which water is completely transferred to ice is slightly less than 0oC

Step by step solution

01

Describe the scenario

The temperature at which a liquid transform into a solid is called its freezing point. The freezing point of water is 0oC . At this temperature, water begins to freeze. In this scenario, the temperature of the ice at which it is completely transformed into its solid form by the freezing water has to be calculated. For that, we need to observe the graph of temperature versus energy.

02

Observe the graph of temperature versus energy

Consider the graph of temperature verses energy. It gives the idea of how phase changes with the temperature.

From this graph, we can understand that at 0oC , there will be water and ice. When the temperature falls below 0oC , the water becomes completely transformed into ice.

So, the temperature of ice at which ice is formed from freezing water is slightly less than 0°C.

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Most popular questions from this chapter

Consider a person outdoors on a cold night. Construct a problem in which you calculate the rate of heat transfer from the person by all three heat transfer methods. Make the initial circumstances such that at rest the person will have a net heat transfer and then decide how much physical activity of a chosen type is necessary to balance the rate of heat transfer. Among the things to consider are the size of the person, type of clothing, initial metabolic rate, sky conditions, amount of water evaporated, and volume of air breathed. Of course, there are many other factors to consider and your instructor may wish to guide you in the assumptions made as well as the detail of analysis and method of presenting your results.

Some electric stoves have a flat ceramic surface with heating elements hidden beneath. A pot placed over a heating element will be heated, while it is safe to touch the surface only a few centimeters away. Why is ceramic, with a conductivity less than that of metal but greater than that of a good insulator, an ideal choice for the stovetop?

One way to make a fireplace more energy efficient is to have an external air supply for the combustion of its fuel. Another is to have room air circulate around the outside of the fire box and back into the room. Detail the methods of heat transfer involved in each.

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