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In a 25°C room, hot coffee in a vacuum flask cools from
Chapter 8, Problem 3P(choose chapter or problem)
QUESTION:
In a 25°C room, hot coffee in a vacuum flask cools from 75°C to 50°C in 8 hours. Explain why you predict that its temperature after another 8 hours will be 37.5°C.
Questions & Answers
QUESTION:
In a 25°C room, hot coffee in a vacuum flask cools from 75°C to 50°C in 8 hours. Explain why you predict that its temperature after another 8 hours will be 37.5°C.
ANSWER:Solution 3P This question can be solved using Newton’s law of cooling. This law states that the rate of change of temperature of a body is proportional to the temperature difference between the body and its surrounding. dT It can be wr