I place a 250-g ice cube (initially at 0$\degree$C) in a Styrofoam box with wall thickness 1.0 cm and total surface area 600 cm². If the air surrounding the box is at 20$\degree$C and after 2 hours the ice is completely melted, what is the conductivity of the Styrofoam material? (L_f = 80 cal/g) A) 9.6 *10^-⁵ B) 2.8 * 10^-⁶ C) 1.15 * 10^-² D) 2.3 *10^-⁴

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The Answer of I place a 250-g ice cube (initially at 0$\degree$C) in a Styrofoam box with wall thickness 1.0 cm and total surface area 600 cm². If the air surrounding the box is at 20$\degree$C and after 2 hours the ice is completely melted, what is the conductivity of the Styrofoam material? (L_f = 80 cal/g) A) 9.6 *10^-⁵ B) 2.8 * 10^-⁶ C) 1.15 * 10^-² D) 2.3 *10^-⁴

I Place a 250-G Ice Cube (Initially at 0 °\degree° C) in a Styrofoam Box with Wall Thickness 1

I Place a 250-G Ice Cube (Initially at 0 $\degree$ C) in a Styrofoam Box with Wall Thickness 1