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100 g of ice at 0^(@)C is mixed with 100...

100 g of ice at `0^(@)`C is mixed with 100 g of water at `80^(@)`C. The resulting temperature is `6^(@)`C. Calculate heat of fusion of ice.

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`overset("ice")(at0^(@)C)rarroverset(water)(at0^(@)C)rarroverset(water)(at6^(@)C)`
`m_(1)c_(1)(80-6)=m_(2)L+m_(2)c_(2)(6-0)`
`100xx1xx74=100L+100xx1xx6`
`L=(1xx74)-6`
`=68cal//g.`
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