Ice at 0°C is more effective in cooling than water at the same temperature because
(a) it holds latent heat
(b) the molecules use the heat to overcome the force of attraction
(c) both (a) and (b)
(d) none of the above

Correct answer: (a) it holds latent heat

Explanation: Ice at 0°C is more effective in cooling than water at the same temperature, because ice absorbs the latent heat of 3.34 × 10⁵ joules from the substance and cools it effectively. On the other hand, water at the same temperature doesn't take any heat from the substance.

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Updated on: 15-Mar-2023

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