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Social ScienceHow much heat must be added to a 2 kg block of ice at -11°C to change it to water at 24°C?A) 230 kcalB) 59 kcalC) 70 kcalD) 220 kcalE) 190 kcal
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How much heat must be added to a 2 kg block of ice at -11°C to change it to water at 24°C? A) 230 kcal B) 59 kcal C) 70 kcal D) 220 kcal E) 190 kcal
Expert Answer
Heat added is
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тx S, x11 + mxL +тxS,x24
Substitute the...
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T mx Sx11mxL + mxS,x24 T 2x0.5 11+ 79.7x2 2x1x24 220 kcal
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