Interpretation:
The final temperature of water needs to be calculated.
Concept introduction:
The amount of heat obtained from burning oil can be calculated by its specific energy.
Answer to Problem 126A
The final temperature of the water will be 91.11°C.
Explanation of Solution
1kg of soy oil gives 39.2 MJ energy.
Energy provided by 12.2g soy oil:
This energy is equal to heat provided,
By first law of
Mass of water m = 1.6 kg
Specific heat of waterC = 4200 J/kg°C
The heat of soy oil was calculated from its specific energy and from it the final temperature of water was calculated.
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