The specific heat of ice is 2.100 kJ/kg °C, the heat of fusion for ice at 0 °C is 333.7 kJ/kg, the specific heat of water 4.186 kJ/kg °C, and the heat of vaporization of water at 100.0 °C is 2,256 kJ/kg. What is the final equilibrium temperature when 10.00 grams of ice at −15 °C is mixed with 3.000 grams of steam at 100 °C?

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87.21 °C

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85.32 °C

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80.34 °C

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82.56 °C

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78.45 °C