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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

(a) Cherry-red embers in a fireplace are at 850ºC and have an exposed area of\({\bf{0}}{\bf{.200}}\;{{\bf{m}}^{\bf{2}}}\)and an emissivity of 0.980. The surrounding room has a temperature of 18.0ºC. If 50% of the radiant energy enters the room, what is the net rate of radiant heat transfer in kilowatts? (b) Does your answer support the contention that most of the heat transfer into a room by a fireplace comes from infrared radiation?

Find the net rate of heat transfer by radiation from a skier standing in the shade, given the following. She is completely clothed in white (head to foot, including a ski mask), the clothes have an emissivity of 0.200 and a surface temperature of 10.0ºC , the surroundings are at −15.0ºC , and her surface area is\({\bf{1}}{\bf{.60}}\;{{\bf{m}}^{\bf{2}}}\).

When heat transfers into a system, is the energy stored as heat? Explain briefly.

Describe a situation in which heat transfer occurs. What are the resulting forms of energy?

Heat transfer can cause temperature and phase changes. What else can cause these changes?

See all solutions

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