Some years ago a unique proposal was made to raise theTitanic. The plan involved placing pontoons within theship using a surface-controlled submarine-type vessel.The pontoons would contain cathodes and would befilled with hydrogen gas formed by the electrolysis ofwater. It has been estimated that it would require about7 x108 mol of H2 to provide the buoyancy to lift the ship (a) How many coulombsof electrical charge would be required? (b) Whatis the minimum voltage required to generate H2 and O2 ifthe pressure on the gases at the depth of the wreckage (2mi) is 300 atm? (c) What is the minimum electrical energyrequired to raise the Titanic by electrolysis? (d) What isthe minimum cost of the electrical energy required togenerate the necessary H2 if the electricity costs 85 centsper kilowatt-hour to generate at the site?
Some years ago a unique proposal was made to raise the
Titanic. The plan involved placing pontoons within the
ship using a surface-controlled submarine-type vessel.
The pontoons would contain cathodes and would be
filled with hydrogen gas formed by the
water. It has been estimated that it would require about
7 x108 mol of H2 to provide the buoyancy to lift the ship
(a) How many coulombs
of electrical charge would be required? (b) What
is the minimum voltage required to generate H2 and O2 if
the pressure on the gases at the depth of the wreckage (2
mi) is 300 atm? (c) What is the minimum electrical energy
required to raise the Titanic by electrolysis? (d) What is
the minimum cost of the electrical energy required to
generate the necessary H2 if the electricity costs 85 cents
per kilowatt-hour to generate at the site?
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