Entropy: a 2

question 17

Multiple Choice

Entropy: A 2.00-kg block of ice at 0.00°C is dropped into a very large lake at 25.0°C and completely melts. For water, the heat of fusion is 3.35 × 10⁵ J/kg, the heat of vaporization is 2.25 × 10⁵ J/kg, and the specific heat is 4190 J/kg∙K. The net change in entropy of the system consisting of the ice and the lake due to this melting process is closest to

• A) 2.45 × 10³ J/K.
• B) 2.24 × 10³ J/K.
• C) 2.06 × 10² J/K.
• D) -2.45 × 10³ J/K.
• E) -2.06 × 10² J/K.

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