Deg Four

Deg Four
a person drinks four glasses of cold water to 3C every day.?

the volume of each cup is 250 ml. the amount of heat, in kJ, is the body has be provided to maintain the temperature at 37 degrees C? well, I've come so far .. but then the amount of heat required to raise the temperature of 800g of snow 0 to 37 degrees. C?

Mass of water (by volume) times the specific heat times the difference in water temperature. 250 ml * 4 = 1000 ml = 1.000 L (your teacher will probably want to assume that this is the same as 1000 grams of water) Water has a specific heat of 4.184 J/g- ° C The temperature difference is 37 degrees – 3 degrees = 34 degrees Celsius. 1000 g * 4.184 J/g- ° C * 34 ° C = 142,256 J 142,256 J / 1000 J / kJ = 142.256 to 4 significant figures kJ = 142.3 kJ Taking into effect the density of water as 0.999992 g / ml to 3.0 ° C would give the answer as that would still be 142,255 J 142.3 kJ after rounding.

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