7521
Physics Heat & Thermodynamics Level: Misc Level
The air temperature over a lake is -10 degress Celius, while the water below the surface of the ice(now 1..00 cm thick) is at 4 degrees celius. What is the speed at which the ice layer on the lake thickens (measured in m/s or some multiple thereof ) ? Information you may need; The thermal conductivity of ice is 1.6 w/(mk), the specific heat of ice is 2000 J/(kg degrees Celius),that of water is 4186 J/(kg degrees celius) and the latent heat of fusion of water is 334 kJ /kg.
