According to Newton's law of cooling, the rate at which a substance cools in alir is directly proportional to the difference between the temperatures of the substance and that of air. If the temperature of the air is 30° and the substance cools from 100* to 70* in 15 minutes, how long will it take to cool 100* to 50? a. 33. 59 min C. 41.74 min d. 45.90 min b. 43.80 min

According to Newton's law of cooling, the rate at which a substance cools in alir is directly proportional to the difference between the temperatures of the substance and that of air. If the temperature of the air is 30° and the substance cools from 100* to 70* in 15 minutes, how long will it take to cool 100* to 50? a. 33. 59 min C. 41.74 min d. 45.90 min b. 43.80 min

Engineering Fundamentals: An Introduction to Engineering (MindTap Course List)

5th Edition

ISBN:9781305084766

Author:Saeed Moaveni

Publisher:Saeed Moaveni

Chapter11: Temperature And Temperature- Related Variables In Engineering

Section: Chapter Questions

Problem 6P

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