Question

Down at McMurdo Station in Antarctica, you are in charge of drinking water supplies. Every morning, you must melt 2500 gram block of H2O ice and raise it to normal drinking water temperature, 290 K. This morning, July 29, 2020, the ice block's temperature is 267. Calculate the total energy budget, in calories, that you need for this drinking water chore on 7/29/20. Type in your answer to the nearest calorie -- it's going to be a big number! E.g., if your answer is 848,922.73 calories, then type 848923 in the answer box.

Answer 1

Latent heat of fusion of ice = 334 5/8m 24.2 J/kg-k Specific heat (c) of watlen - G. 201 Total energy resurd = (2500 x 334) + 2500 x 4.2% (290-267) 24ugsta I = 107650 0 J I J = I calonie 4.2 Total energy required 1076500 204 4033 Gero 4.2 = 25 6309.52 Cal = 25.630 .2563 10 cal. 25 6310