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Latent Heat

Latent heat o...

Question

Latent heat of fusion of ice is:

336 k J k g^{- 1}

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663 k J k g^{- 1}

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363 k J k g^{- 1}

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636 k J k g^{- 1}

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Solution

The correct option is A $336 k J k g^{- 1}$
Latent heat of fusion of ice
$= 80 c a l g^{- 1}$
$= 80 \times 4.2 J \times 10^{3} k g^{- 1}$
$= 336 \times 10^{3} J k g^{- 1}$

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Similar questions

336000 J k g^{- 1}

100^{o} C

= 540 c a l g^{- 1}

= 80 c a l g^{- 1}

= 0.5 c a l g^{- 1}^{o} C^{- 1}

- 10^{\circ} C

100^{\circ} C

c_{i} = 0.5 {cal g}^{- 1}^{\circ} C^{- 1}

c_{w} = 1 {cal g}^{- 1}^{\circ} C^{- 1}

L_{f} = 80 cal/g

L_{v} = 540 cal/g

1 kg

- 10^{\circ} C

100^{\circ} C

= 2100 J {k g}^{- 1} K^{- 1}

= 3.36 \times 10^{5} J {k g}^{- 1}

= 4200 J {k g}^{- 1} K^{- 1}

= 2.25 \times 10^{6} J {k g}^{- 1}

J . K^{- 1}

27.3

0^{\circ} C

= 330 J . g^{- 1})

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