A 39 g aluminum spoon (specific heat 0.904 J/g-°C) at 25°C is placed in 178 mL (177 g) of coffee at 84°C and the temperature of the two become equal. (a) What is the final temperature (in °C) when the two become equal? (Assume that coffee has the same specific heat as water, 4.1801 J/g.°C.) 4.0 °C (b) The first time a student solved this problem she got an answer of 87°C. Explain why this is clearly an incorrect answer. O The temperature of the spoon should decrease when it is exposed to the coffee. O Coffee is always lukewarm by the time you get around to drink it, and so is the spoon. O The temperature of the coffee cannot increase when a colder spoon is placed in it. O The student forgot to convert the temperature to kelvins when working this problem. Supporting Materials Periodic Table Constants and Supplemental Data Factors Additional Materials ASection 5 2 Show My Work (Required) 3 Uploaded File (10 le m What steps or reasoning did you use? Your work counts towards your score. You can submit show my work an unlimited number of times. E 2 Type here to search 80

A 39 g aluminum spoon (specific heat 0.904 J/g-°C) at 25°C is placed in 178 mL (177 g) of coffee at 84°C and the temperature of the two become equal. (a) What is the final temperature (in °C) when the two become equal? (Assume that coffee has the same specific heat as water, 4.1801 J/g.°C.) 4.0 °C (b) The first time a student solved this problem she got an answer of 87°C. Explain why this is clearly an incorrect answer. O The temperature of the spoon should decrease when it is exposed to the coffee. O Coffee is always lukewarm by the time you get around to drink it, and so is the spoon. O The temperature of the coffee cannot increase when a colder spoon is placed in it. O The student forgot to convert the temperature to kelvins when working this problem. Supporting Materials Periodic Table Constants and Supplemental Data Factors Additional Materials ASection 5 2 Show My Work (Required) 3 Uploaded File (10 le m What steps or reasoning did you use? Your work counts towards your score. You can submit show my work an unlimited number of times. E 2 Type here to search 80

Chemistry

10th Edition

ISBN:9781305957404

Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Chapter1: Chemical Foundations

Section: Chapter Questions

Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...

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