Answered: If the gravitational potential energy…

College Physics

11th Edition

ISBN:9781305952300

Author:Raymond A. Serway, Chris Vuille

Publisher:Raymond A. Serway, Chris Vuille

Chapter1: Units, Trigonometry. And Vectors

Section: Chapter Questions

Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...

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Question

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)

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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