A certain diet doctor encourages people to diet by drinking ice water. His theor

Question

A certain diet doctor encourages people to diet by drinking ice water. His theory is that the body must burn off enough fat to raise the temperature of the water from 0.00 degree C to the body temperature of 37.0 degree C. How many liters of ice water would have to be consumed to burn off 490 g (about 1.08 lb) of fat, assuming that this much fat burning each gram of fat requires 7.71 Cal be transferred to the ice water? (one liter = 10^-3m^3. The density of water is 1.00 g/cm^3) Number Units the tolerance is +/-2%

Explanation / Answer

energy required= 7.71 Cal

= 32259 J

4186*37* m = 32259

m = 32259/(4186*37)

= 0.208 kg

volume = 0.208 litre

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