Statement I : If one gram of ice is mixed with 1 g of water at $80^{0} C$ , then the final temperature of mixture is zero.
Statement II : Latent heat of ice $80^{0} C$ cal/g.

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If statement I is true but statement II is false

If both statement I and statement II are true but statement II is not the correct explanation of statement I.

If both statement I and statement II are true and statement II is the correct explanation of statement I.

If both statement I and statement II are false

answer is B.

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Detailed Solution

Heat required by ice to melt

= 1 $\times$ 80 = 80 cal

Heat lost by water in cooling from $80^{0} C to 0^{0} C$

= $1 \times 1 \times (80 - 0) = 80 cal$

From principle of calorimetry,

Heat lost = Heat gained

Thus, the final temperature of mixture will be $0^{0} C$ .

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