Question

Why should a glass bottle completely filled with water neverbekept in a freezer

Answer 1

water expand on solidifying Due to this expansion a glass bottle completely filled with water and tightly closed at room temperature is likely to burst when it is kept in a freezer or refrigerator

Answer 2

Answer:

When a glass bottle completely filled with water is kept in a freezer, it breaks.

Explanation:

1. The refrigerator is used to maintain the temperature of the objects placed inside it below the room temperature.

2. The freezer has the least temperature in the refrigerator i. e. less than 0° C.

3. When a glass bottle completely filled with water is kept in freezer, temperature of bottle decreases.

4. When the temperature of bottle falls below 4° C, water kept in the bottle starts to expand.

5. At 0° C, the water in the bottle converts into ice.

6. But, there is increase in its volume.

7. Due to this increased volume, a large pressure gets applied on the glass bottle.

8. As a result of this, the glass bottle gets broken.

Hence,

A glass bottle completely filled with water should never be kept in a freezer.

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Additional Information:

1. Anomalous behaviour of water:

1. When we heat any substance, it expands and when we cool it, it contracts.

2. But, water is an exception to this.

3. When we heat the water from 0° C to 4° C, it contracts.

4. And when we cool water from 4° C to 0° C, it expands.

5. Such exceptional behaviour shown by water in temperature range 0° C - 4° C is known as “Anomalous behaviour of water”.

2. Effects of anomalous behaviour of water:

1. It becomes difficult to convert water into ice in big industries due to this behaviour of water.

2. The aquatic life gets saved in the areas having less than 0° C temperature due to this behaviour of water.