
Interpretation: The final temperature of the water of the mixer of water sample which is formed by mixing 300 g of water 20°C and 200 g of water at 50°C needs to be determined.
Concept Introduction: Due to transfer of energy the temperature of any substance increases or decreases. Specific heat can be defined as the heat that would require to raise the temperature of 1 unit mass by per °C. The change in temperature for the addition of energy can be calculated with the help of calorimetric equation:

Answer to Problem 6E
Explanation of Solution
Mass of water of sample 1= 300 g
Temperature of water of sample 1 = 20°C
Mass of water of sample 1= 200 g
Temperature of water of sample 1 = 50°C
Total mass of mixture = 200 + 300 = 500 g
Thus, the final temperature of mixture must be 32°C.
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