An ice box made of styrofoam (thermal conductivity= 0.01 Jm^-1 s^-1K^-1) is used to keep liquids cool. It has a total wall area including lid of 0.8 m² and wall thickness of 2.0 cm. A
bottle of water is placed in the box and filled with ice. If the outside temperature is 30°C the rate of flow of heat into the box is: (in Js^-1)