During rainy days, you like to fix yourself a mug of hot choco. Being an "O.C." you like to prepare 250mL of this delicious drink at precisely 90 degree Celsius plus you always add enough milk at 5 degree Celsius to drop the temperature of the choco to 85 degree celcius. What is the amount of milk (in mL) that you need to add to reach this temperature? (Assume that the mug is insulated from surroundings, the specific capacity of the choco and milk is 4.18 J/g degree Celsius, and their densities is 1.0 g/mL).

During rainy days, you like to fix yourself a mug of hot choco. Being an "O.C." you like to prepare 250mL of this delicious drink at precisely 90 degree Celsius plus you always add enough milk at 5 degree Celsius to drop the temperature of the choco to 85 degree celcius. What is the amount of milk (in mL) that you need to add to reach this temperature? (Assume that the mug is insulated from surroundings, the specific capacity of the choco and milk is 4.18 J/g degree Celsius, and their densities is 1.0 g/mL).

Physics for Scientists and Engineers: Foundations and Connections

1st Edition

ISBN:9781133939146

Author:Katz, Debora M.

Publisher:Katz, Debora M.

Chapter21: Heat And The First Law Of Thermodynamics

Section: Chapter Questions

Problem 71PQ

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