Question

Lake Erie contains roughly 4.00 ✕ 10^{11} m^{3}
of water.

(a) How much energy is required to raise the temperature of that
volume of water from 14.4°C to 25.4°C? (Assume the density of this
water to be equal to that of water at 20°C and 1 atm.)

J

(b) How many years would it take to supply this amount of energy by
using the 1,400-MW exhaust energy of an electric power plant?

yr

Answer #1

Lake Erie contains roughly 4.00 ✕ 1011 m3
of water.
(a) How much energy is required to raise the temperature of that
volume of water from 15.4°C to 22.6°C? (Assume the density of this
water to be equal to that of water at 20°C and 1 atm.)
J
(b) How many years would it take to supply this amount of energy by
using the 1,400-MW exhaust energy of an electric power plant?
yr

Lake Erie contains roughly 4.20E+11 m3 of water. How much heat
is required to raise the temperature of that volume of water from
11.3oC to 12.0oC? How many years would it take to supply this
amount of heat by using the full output of a 1120 MW electric power
plant? Do not enter unit.

Lake Erie contains roughly 4.20E+11 m3 of water. How
much heat is required to raise the temperature of that volume of
water from 10.7oC to 13.0oC?
How many years would it take to supply this amount of heat by
using the full output of a 1160 MW electric power plant? Do not
enter unit.

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