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
Explain the following:
In cold regions in winter, the rocks crack due to anomalous expansion of water.
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?
Water is cooled from 4 °C to 0 °C. It will :
Explain, why are the exposed water pipes lagged with straw during severe winter?
Why does a thick glass tumbler crack when very hot water is poured in it?
Give reasons for the following:
Even when the water in the lakes is frozen, fish can survive.
What will be the approximate temperature of water in the lake shown in the following diagram?

(i) At X, and
(ii) At Y?
Observe the given picture and answer the following questions.

- Which property do you understand in this picture?
- What is the temperature of the water at the surface?
- What is the temperature below the layer of ice on the surface?
