Question
(a) What is the cost of heating a hot tub containing 1540 kg of water from 10.0C to 40.0C, assuming 75.0% efficiency to take heat
(a) What is the cost of heating a hot tub containing 1540 kg of water from 10.0C to 40.0C, assuming 75.0% efficiency to take heat loss to surroundings into account? The cost of electricity is 9.00/(kW h) and the specific heat for water is 4184 J/(kg C).
(b) What current was used by the 220 V AC electric heater, if this took 4.10 h?
Step by Step Solution
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a To calculate the cost of heating the hot tub Given Mass of water m 1540 kg Initial temperature T1 ...
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College Physics
Authors: OpenStax
2nd Edition
171147083X, 978-1711470832
