Question

1.Why does a tighty fixed ud of a bottle come loose when kept under hot water.
2.What would happen to aquatic life if water contracts on cooling till o°C and expands on heating
3.Why does tea cool more rapidly in a saucer than in a cup?
4.Why do the tyres of a car filled with compressed air become slightly flat in winter.​

Answer 1

Answer:

1. Because heat releases tension of the body or the object.

2. many of the aquatic life animal will die except those who can hibernate throughout long particular time.

3. because the surface area of the sorcerer is more than the cover for the schools more rapidly in saucer than the cup.

4. because of coldness the body or the object attain tension.

Answer 2

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-》●The thermal conductivity of the metal top is much greater than that of the glass, and its specific heat is relatively low, so the temperature of the entire metal lid rises rapidly. .

-》●If water contracts on cooling till 0∘ whole this system will be disturbed and whole water is freezes, which kills the aquatic life.

= A liquid has a larger surface area in a saucer than in a cup. ... Larger is the surface area more is the evaporation. Thus evaporation is faster in a saucer causing more cooling than in a cup

-》☆The main reason for this is the dropping temperatures, which cause the air to become denser and consequently lower the tire pressure. Of course, tires naturally lose pressure over time, and there can be a puncture. ... Colder temperatures will cause tire pressure to drop about 1 psi for every 10°F drop in air temperature.