Two Kilograms of Ice at 0

question 15

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