The energy required to melt 200 g of ice at 0°C given ΔHf = 333.55 J/g is?

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Prepare for the Dual Enrollment Physical Science Midterm. Study with flashcards and multiple choice questions, each with hints and explanations. Ace your exam!

Multiple Choice

The energy required to melt 200 g of ice at 0°C given ΔHf = 333.55 J/g is?

Explanation:
Melting at 0°C requires latent heat of fusion, so the energy needed is simply mass times the latent heat per gram. For 200 g of ice, E = 200 g × 333.55 J/g = 66,710 J. Therefore, the energy required is 66,710 joules. The other values come from rounding or slightly different masses (e.g., 66,210 J would imply about 198 g, and 67,000 J would be a rounded estimate).

Melting at 0°C requires latent heat of fusion, so the energy needed is simply mass times the latent heat per gram. For 200 g of ice, E = 200 g × 333.55 J/g = 66,710 J. Therefore, the energy required is 66,710 joules. The other values come from rounding or slightly different masses (e.g., 66,210 J would imply about 198 g, and 67,000 J would be a rounded estimate).

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