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12. A sample of ethylene glycol, used in car radiators, has a mass of 34.8 g. The car releases, 783 J of heat. The initial temperature of the sample is 22.1 0C. What is the final temperature? The specific heat capacity of ethylene glycol is 2.42 (J/g 0C)
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Respuesta :

MissPhiladelphia
The heat released can be calculated by the product of specific heat capacity, temperature difference and mass of the sample. We use the expression as follows:

H = mCΔT

783 = 34.8 (2.42) (T - 22.1)
9.30 = T - 22.1
T = 31.40°C

Hope this answers the question. Have a nice day.

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