Question

Which is more effective in cooling?
a.Ice at 273K
b.Water at 273 K
c.Water at 373K
d.Ice at 373K

Answer 1

Answer:

Water at 273 K would just absorb heat energy in order to attain the room temperature. Thus, the water at 273 K would absorb less amount of heat energy from the surroundings as compared to ice at 273 K. Therefore, ice at 273 K is more effective in cooling then water at the same temperature.

ice 273k is more effective for colling.

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Answer 2

Answer:

From the given options, the correct option is A) Ice at 273K.

Explanation:

• In order to answer this question, you must first understand the concept of latent heat. Water absorbs heat as it transforms from ice to water. As a result, ice stores more energy than water at the same temperature.
• - Latent heat is the heat required to convert one state of a substance to another without changing the temperature. In other words, it is the energy required to convert a substance from solid to liquid or from liquid to vapour while maintaining a constant temperature.
• - The heat required to convert a solid to a liquid at constant temperature and pressure is referred to as the latent heat of fusion. Similarly, latent heat of vaporisation is the heat required to convert a substance in liquid phase to vapours at constant temperature and pressure.
• - At 273 K, ice absorbs more heat from the substance than water, allowing it to overcome the latent heat of fusion and thus provide a more effective cooling effect. Water, on the other hand, does not absorb any additional heat from the substance.
• At 273 Kelvin, Ice is thus more effective than water in cooling.

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