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A 2.00-kg block of copper at 15.0°C is dropped into a large vessel of liquid nitrogen...

A 2.00-kg block of copper at 15.0°C is dropped into a large vessel of liquid nitrogen at 77.3 K. How many kilograms of nitrogen boil away by the time the copper reaches 77.3 K?

(The specific heat of copper is 0.092 0 cal/g ·°C, and the latent heat of vaporization of nitrogen is 48.0 cal/g.)

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Answer #1

Lopper mau 2-00k tempereture 1 opper, Tr 15.c Ti 288k Mass blouk / 2.22+15K Tnitial heat Ccally Latont hat Vapo 24t10n opper,

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