Concept explainers
Interpretation: The final temperature of water needs to be determined if a sample of
Concept introduction: Specific heat of capacity can be defined as the amount of heat added to a substance to raise the temperature by one degree.
The equation for heat is as follows:
Where, Q is the amount of heat, m is the mass of substance, s is the specific heat capacity and
Answer to Problem 55A
The final temperature of water will be
Explanation of Solution
Initially, the temperature of both the water samples are
The specific heat capacity for the liquid water is
Let the final temperature be
The heat lost by the water sample, which is at
The heat gained by the water sample, which is at
The heat lost by the one water sample will be equal to the heat gained by the another water sample as:
Where, the negative sign represents that the heat is released during the process.
Hence, the final temperature of the resultant mixture will be
After mixing the both water samples, the final temperature of the resultant mixture will be in between the two given temperatures (i.e. between
Chapter 10 Solutions
World of Chemistry, 3rd edition
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