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A boy heats 5kg of water to a temperature of 80oC. When she adds m kg of water at 15oC the mixture attains a...

      

A boy heats 5kg of water to a temperature of 80oC. When she adds m kg of water at 15oC the mixture attains a temperature of 40oC. Determine the value of m

  

Answers


joseph
Heat loss by hot water = heat gained by cold water
m= 5x 4200x40/
(4200 x25)
= 8kg

joseph rimiru answered the question on January 7, 2018 at 17:29


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