How much energy (approx) is required to melt 450g of ice at $0^{o} C$ ?

1500 KJ

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1600 KJ

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150 kJ

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None of these

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Solution

The correct option is C 150 kJ
$Q = L_{i c e} \times m$

$L_{i c e}$ = $3.34 \times 10^{5} \frac{J}{K g}$

$Q = 3.34 \times 10^{5} \times 0.45$ = $150 k J$

Hence, the correct option is C.

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