Two Kilograms of Ice at 0

question 22

Multiple Choice

Two kilograms of ice at 0.0 °C are placed in a sealed glass container [k = 0.80 W/(m · C°) ]. The container is then placed in a room that is maintained at 30.0 °C. The top cover is a thermal insulator and all other sides of the container are exposed to room air. The surface area of the container is 6.53 × 10^-2 m²; and its glass walls are 0.0050 m thick.
-How much heat is required to melt the ice?

• A)16 J
• B)1080 J
• C)1.6 × 10⁵ J
• D)6.7 × 10⁵ J
• E)4.5 × 10⁶ J

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