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lake eerie contains 4.00*10^11 m^3 of water how much energy is required to raise

ID: 1728112 • Letter: L

Question

lake eerie contains 4.00*10^11 m^3 of water
how much energy is required to raise that volume of water froma temperature 0f 12.0 to 14.0 c ______________ Joules how many years would it take supply that amount ofenergy using a 1050 exhaust energy of an electric power plant____________Yr
how much energy is required to raise that volume of water froma temperature 0f 12.0 to 14.0 c ______________ Joules how many years would it take supply that amount ofenergy using a 1050 exhaust energy of an electric power plant____________Yr

Explanation / Answer


The amount of energy required    Q = msT    Q = V s T    = (4.0*10 11 )(103 kg/m3) (4186) (14-12)    = 33488 *1014 J   we know that power    P = W/t = Q/t   therefore t = Q/P = 33488 * 1014 J / 1050 W = 32 *1014 s = 1.014*108 yr