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Latent Heat of Fusion

When ice is c...

Question

When ice is converted into water at 0 $^{0}$ C, then it absorbs all the heat energy without increase in its temperature. What is this heat energy known as ?

Fermentation

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Latent Heat

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Hidden heat

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Normal heat

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Solution

The correct option is A Latent Heat
The heat energy required to change the state of unit mass of the substance is called latent heat. When ice absorbs heat at $0^{o} C$ , amount of heat $Q = m L$ , is used to change the ice into water that's why temperature doesn't change. This heat is hidden from thermometer so it is called "latent heat".

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Similar questions

When 1 g of ice at 0°C melts to form 1 g of water at 0°C, the ice

A small amount of ice is placed in water at 0⁰C. It is observed that small amount of water freezes (i.e., amount of ice increases). Why?

100 g

0^{\circ} C

0^{\circ} C

2

0^{\circ} C

20^{\circ} C

= 4.2 J g^{- 1}^{\circ} C^{- 1}

= 336 J g^{- 1}]

0

27

2 k g

0

0

= 333 \times 10^{3} J {k g}^{- 1}

5.0 g

42^{\circ} C

0^{\circ} C

4.2 J g^{- 1}

336 J g^{- 1}

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