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9 Nov 2019
It takes 50.6 kcal to melt the amount of ice in a styrofoam box with a total wall area of 1.781 m2 and a wall thickness of 1.3 cm. How long does it take to melt the ice if the temperature outside the box is 40.71 C (see sheet 22,24,25 use for the thermal conductivity of styrofoam 0.03 W m-1 degree C-1) ? Indicate with a positive (negative) sign whether you can (cannot) calculate the amount of ice present in the box.
It takes 50.6 kcal to melt the amount of ice in a styrofoam box with a total wall area of 1.781 m2 and a wall thickness of 1.3 cm. How long does it take to melt the ice if the temperature outside the box is 40.71 C (see sheet 22,24,25 use for the thermal conductivity of styrofoam 0.03 W m-1 degree C-1) ? Indicate with a positive (negative) sign whether you can (cannot) calculate the amount of ice present in the box.