Activity 1 Response: Measure the temperature of the environment (ambient temperature), the human body (both forehead...
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Activity 1 Response: Measure the temperature of the environment (ambient temperature), the human body (both forehead and under the tongue), and two other objects in the room. Record this information in both C and F, and group the items into a category of either being in or out of equilibrium with the environment. Using the human body as the system, state the direction of heat flow between the body and the environment and explain why heat flows in this direction. Celsius (C) Fahrenheit (F) Temperature 19.5 67.1 of the environment Human body 35.9 96.6 Forehead Human body 36.0 96.8 Under tongue The computer 20.7 69.2 screen Iphone 25.4 77.1 Activity 2 Response: Use the IR temperature gun to measure the temperature of your hands both before and after vigorously rubbing them together. Compare the temperature difference (if any) before and after, and relate this to how the temperature change is providing information about how energy is changing form. Record how long it takes for your hands to get back to thermal equilibrium, and explain how this occurs. Temperature (C) (F) Before 32.1 89.7 rubbing hand After rubbing 34.9 94.8 hand Time 46 seconds After amount 32.1 89.8 of time Activity 1 Response: Measure the temperature of the environment (ambient temperature), the human body (both forehead and under the tongue), and two other objects in the room. Record this information in both C and F, and group the items into a category of either being in or out of equilibrium with the environment. Using the human body as the system, state the direction of heat flow between the body and the environment and explain why heat flows in this direction. Celsius (C) Fahrenheit (F) Temperature 19.5 67.1 of the environment Human body 35.9 96.6 Forehead Human body 36.0 96.8 Under tongue The computer 20.7 69.2 screen Iphone 25.4 77.1 Activity 2 Response: Use the IR temperature gun to measure the temperature of your hands both before and after vigorously rubbing them together. Compare the temperature difference (if any) before and after, and relate this to how the temperature change is providing information about how energy is changing form. Record how long it takes for your hands to get back to thermal equilibrium, and explain how this occurs. Temperature (C) (F) Before 32.1 89.7 rubbing hand After rubbing 34.9 94.8 hand Time 46 seconds After amount 32.1 89.8 of time
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Related Book For
Fundamentals of Heat and Mass Transfer
ISBN: 978-0471457282
6th Edition
Authors: Incropera, Dewitt, Bergman, Lavine
Posted Date:
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