The turbines in a hydroelectric plant are fed by water falling from a 40 m height. Assuming 90% efficiency for conversion of potential to electrical energy, and 6% loss of the resulting power in transmission, what is the mass flow rate of water (in kg/min) required to power a 150 W light bulb?

The turbines in a hydroelectric plant are fed by water falling from a 40 m height. Assuming 90% efficiency for conversion of potential to electrical energy, and 6% loss of the resulting power in transmission, what is the mass flow rate of water (in kg/min) required to power a 150 W light bulb?

Chemistry: Principles and Reactions

8th Edition

ISBN:9781305079373

Author:William L. Masterton, Cecile N. Hurley

Publisher:William L. Masterton, Cecile N. Hurley

Chapter8: Thermochemistry

Section: Chapter Questions

Problem 23QAP: In the late eighteenth century Priestley prepared ammonia by reacting HNO3(g) with hydrogen gas. The...

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Question

The turbines in a hydroelectric plant are
fed by water falling from a 40 m height.
Assuming 90% efficiency for
conversion of potential to electrical
energy, and 6% loss of the resulting
power in transmission, what is the
mass flow rate of water (in kg/min)
required to power a 150 W light bulb?
[Write your answer to the nearest whole
number]

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