. You find yourself in the middle of a blackout with no electricity. You want to have a cup of tea, but your electric kettle doesn't work, so you decide to put your 1201 thermodynamic knowledge to use. You decide to put 200 cubic centimeters (cc) of water in a thermos flask (i.e. an insulated flask that does not allow any heat to escape the flask) and quickly flip the flask over so the water falls 32 cm to the other end (ignore any effects like splashing, it is just a blob that falls and stops when it reaches the other end). Then you flip it again, and again, each time raising the temperature of the water. The temperature of the water initially (from the tap) was 20°C. The density of water is 1 gm/cc. The specific heat of water is 4187 J/(kg K). А. How much thermal energy is produced for one flip of the flask? В. If you can flip the flask 60 times per minute, how long does it take to heat the water to 100°C?

. You find yourself in the middle of a blackout with no electricity. You want to have a cup of tea, but your electric kettle doesn't work, so you decide to put your 1201 thermodynamic knowledge to use. You decide to put 200 cubic centimeters (cc) of water in a thermos flask (i.e. an insulated flask that does not allow any heat to escape the flask) and quickly flip the flask over so the water falls 32 cm to the other end (ignore any effects like splashing, it is just a blob that falls and stops when it reaches the other end). Then you flip it again, and again, each time raising the temperature of the water. The temperature of the water initially (from the tap) was 20°C. The density of water is 1 gm/cc. The specific heat of water is 4187 J/(kg K). А. How much thermal energy is produced for one flip of the flask? В. If you can flip the flask 60 times per minute, how long does it take to heat the water to 100°C?

College Physics

1st Edition

ISBN:9781938168000

Author:Paul Peter Urone, Roger Hinrichs

Publisher:Paul Peter Urone, Roger Hinrichs

Chapter15: Thermodynamics

Section: Chapter Questions

Problem 9CQ: One method of converting heat transfer to doing work is for heat transfer into a gas to take place,...

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