
Concept explainers
Interpretation:
The hottest cup of water needs to be identified, if the initial temperature of all the cups is the same.
Concept introduction:
Due to transfer of energy the temperature of any substance increases or decreases. The change in temperature for the addition of energy can be calculated with the help of calorimetric equation:

Answer to Problem 6STP
Option (D) is correct statement.
Explanation of Solution
Reason for correct option:
Specific heat of water = 1 calorie/gram °C
Density of water = 1 g/mL
Thus volume of water = mass of water
Calculate the temperature for each statement:
(A)
(B)
(C)
Reasons for incorrect options:
Since the temperature difference is same for all the cups, therefore, the final temperature must be same for all the cups as the initial temperature is same for all.
Chapter U5 Solutions
Living by Chemistry
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