A pond with a flat bottom has a surface area of 698 m2 and a depth of 3.0 meter. On a warm day, the surface water is at a temperature of 25°C, while the bottom of the pond is at 12°C. Determine the rate at which energy is transferred by conduction from the surface to the bottom of the pond. (Use 0.6 J/s•m•°C for the thermal conductivity of water.)
_________W