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If 1500 kg of water at 22 °C is cooled to 4.0 °C, how much
Chapter 18, Problem 98PP(choose chapter or problem)
Problem 98PP
If 1500 kg of water at 22 °C is cooled to 4.0 °C, how much energy is released? (For comparison, the energy released in burning a gallon of gasoline is 1.3 × 108 J.)
A. 2.5 × 107 J
B. 1.1 x 108 J
C. 1.4 × 108 J
D. 1.6 × 108 J
Questions & Answers
QUESTION:
Problem 98PP
If 1500 kg of water at 22 °C is cooled to 4.0 °C, how much energy is released? (For comparison, the energy released in burning a gallon of gasoline is 1.3 × 108 J.)
A. 2.5 × 107 J
B. 1.1 x 108 J
C. 1.4 × 108 J
D. 1.6 × 108 J
ANSWER:
Solution 98PP
Step 1 of 2
To calculate the released energy if water is cooled.
The equation to calculate the heat energy is,
Where, - Mass of the substance
- Specific heat capacity of the substance
And - Change in temperature