Advertisements
Advertisements
प्रश्न
Explain, why does a glass bottle completely filled with water and tightly capped burst when placed in a freezer?
Advertisements
उत्तर
A glass bottle completely filled with water and closed tightly is likely to burst in the freezer of refrigerator because water changes into ice and its volume increases. Since water when cooled from 4°C to 0°C expands. Thus, exerts large pressure and glass bottle bursts.
APPEARS IN
संबंधित प्रश्न
How does the anomalous expansion of water help aquatic organisms in cold climates?
The amount of water vapour in air is determined in terms of its ______.
Explain the following:
How can you relate the formation of water droplets on the outer surface of a bottle taken out of the refrigerator with the formation of dew?
A 50 kg man is running at a speed of 18 km h−1. If all the kinetic energy of the man can be used to increase the temperature of water from 20°C to 30°C, how much water can be heated with this energy?
Explain the following
Fishes survive in ponds even when the atmospheric temperature is well below 0°C.
Explain the following
A hollow glass sphere which floats with its entire volume submerged in water at 4°C, sinks when water is heated above 4°C.
The following figure shows a metal cylinder, containing boiling water. One half side A is polished and another half, B is painted black. Two thin metal sheets X and Y are painted black and have one rubber stopper fixed with wax on each sheet. These sheets are equidistant from the boiling water (container A, B) as shown in the diagram. What would you expect to happen after a few minutes? Give a reason for your answer.

When the temperature of water decreases below 4 °C it’s volume _______.
Name the following diagram appropriately.

Match the columns:
| Column ‘A’ | Column ‘B’ |
| The density of water is maximum at | (a) 0°C |
| (b) 4°C | |
| (c) 100°C |
