If the gravitational potential energy of the water is equal to the increase in the internal energy of the water, compute the change in its temperature (in Kelvin), if water drops from a height of 50 m. Assume no work is done on/by the water (C = 4184 J/kg K)

If the gravitational potential energy of the water is equal to the increase in the internal energy of the water, compute the change in its temperature (in Kelvin), if water drops from a height of 50 m. Assume no work is done on/by the water (C = 4184 J/kg K)

College Physics

1st Edition

ISBN:9781938168000

Author:Paul Peter Urone, Roger Hinrichs

Publisher:Paul Peter Urone, Roger Hinrichs

Chapter15: Thermodynamics

Section: Chapter Questions

Problem 19CQ: Whyother than the fact that the second law of thermodynamics says reversible engines are the most...

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Question

Sol.
Using the first law of thermodynamics:
A U=Q -
Since
W =
Then
A U=Q
But, by virtue of the problem, the internal energy is equal to
Δυ-
While
Q =
ΔΤ
Then
h=
AT
AT =
K (2 decimal place)

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