Question

5. Explain the following:
(a) Why do soft drink bottles cool better in ice at
0°C than water at 0°C?
(b) Why the weather becomes bitterly cool when
snow starts melting?
(c) Why does it become warm during snowfall?
(d) Why do the glaciers not melt completely during
summer?
(e) Why are the burns caused by steam more
severe than those caused by boiling water?​

Answer 1

Answer:

Pls mark as brainliest

Explanation:

1. ice is solid. the particles in a solid are directly touching each other. water is liquid and its particles are not so close together. although they are at the same temperature, because ice particles are touching each other it is easier for heat to be transferred unlike in water where the particles aren't as close together.
2. a lot of energy is needed to melt a substance. this energy comes from a sources as energy is always conserved and just transformed from one form. when snow melts it absorbs the required energy from its surroundings. it is like an endothermic reaction. this loss in the heat of surroundings is what makes the temperature to drop and become cool.
3. this is basically the opposite. when solids are formed energy is not absorbed but rather released. this is like en exothermic reaction. the environment gains this heat and the temperature increases making it hotter.
4. glaciers are very large and have got a large surface area and volume also. when compared to each other the surface area is quite small in comparison to the volume. a larger surface area allows reactions to happen faster. because of this small surface area it is not going to melt easily and would require an extremely large amount of energy to melt it. even in the summer, there is not enough energy in the environment to melt it completely.
5. compared to boiling water stem has more energy. when steam lands on your skin, it condenses to water which is a change of state and the heat is absorbed by your skin reducing its temperature. so the steam carries an additional latent heat(heat for change of state). boiling water on the other hand has less heat although they are at the same temperature. the water is already liquid so no  change of state happens. so the steam carries more heat than the water causing more severe burns than boiling water.