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
The amount of water vapour in air is determined in terms of its ______.
Observe the following graph. Considering the change in volume of water as its temperature is raised from 0°C, discuss the difference in the behaviour of water and other substances. What is this behaviour of water called?
Calculate the time required to heat 20 kg of water from 10°C to 35°C using an immersion heater rated 1000 W. Assume that 80% of the power input is used to heat the water. Specific heat capacity of water = 42000 J kg−1 K−1.
The following diagrams illustrate three situations involving thermometers which are labeled A, Band C. In each situation the thermometers indicate different readings.
(i) What do you expect the approximate reading of the thermometer B and C would be? Give a reason for your answer.
(ii) How would the readings of A and B help you in calibrating a thermometer?
Study the following diagrams and write down your observations.
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 graph and answer the following questions:
- Name the process represented in the figure.
- At what temperature does this process take place?
Write scientific reason.
Placing a plastic bottle filled with water in the freezing compartment in the freezer can cause the bottle to explode.
