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80 g of water at `30^(@) C` is mixed with 50 g of water at `60^(@) C`, final temperature of mixture will be

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80 g of water at `30^(@) C` is mixed with 50 g of water at `60^(@) C`, final temperature of mixture will be
A. 30 g
B. 80 g
C. 1600 g
D. 150 g

1 Answer

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Correct Answer - A
If m g ice melts, then
Heat lost = Heat gain
`80 xx 1 xx (30-0) = m xx 80 rArr m = 30kg`
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