Initial temperature hot tea 52° C,
Final temperature after adding milk 39° C.
Initial temperature of cold milk is 19° C
Quantity hot tea 175 ml
c) What is your calculated heat transfer (Q) of the hot beverage when 4 ounces (120 mL) of cold beverage was added? Report your answer in Joules.
My answer: 0.12ml * (4.18 kj/kg.C) * (39C - 19C)= 10.032 J
d)What is your calculated heat transfer (Q) of the cold beverage when 4 ounces (120 mL) was added to the hot beverage? Report your answer in Joules.
My Answer 0.175ml * (3.85 kj/kg.C) * (39C - 52C)= −8.75875 J
1 answer
correct except for units. I am not keen on your use of units, wthout some assumption of density (ie liters to kg)
1 answer