Two Kilograms of Ice at 0

question 2

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.
-Approximately,how long does it take all of the ice to melt?

• A)4.7 min
• B)7.8 min
• C)18 min
• D)36 min
• E)2.7 h

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Definitions:

Canada

A country in North America known for its vast landscapes, multicultural cities, and as a leader in environmental conservation.

Low-Grade Ores

Ores that contain a relatively low concentration of the desired metal, requiring more extensive and often more expensive processing to extract the metal.

Energy Costs

The financial expenditure associated with the consumption or production of energy, influenced by factors like supply, demand, and resource availability.

Environmental Effects

The changes to the natural environment caused by human activities or natural processes, impacting ecosystems, wildlife, and human health.