Concept explainers
Interpretation:
The final temperature of the mixture of
Concept Introduction: The final temperature of the mixture depends upon the combination of both the substances. Final temperature of the water is calculated by the formula,
To determine: The option corresponding to the final temperature of the mixture.
Correct answer: The correct option is (b).
Reason for correct answer:
Mass of ice is
Mass of water is
Molar mass of ice is
The value of specific heat of water,
The molar heat of fusion for ice,
The energy required for conversion of
Substitute the value of mass, molar mass of ice and
Temperature,
Substitute the value of
It is assumed that heat is not releases into surrounding.
Final temperature of the water is calculated by the formula,
Substitute the values of
Therefore, the final temperature of the mixture is
Reason for incorrect options:
All the other given values in option (a), (c) and (d) do not match with the above calculated value of final temperture. Hence, they are incorrect.
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Principles of Chemistry: A Molecular Approach (3rd Edition)
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