A typical ice cube, with dimensions of 1" by 2" by 1", has a volume of 2 cubic inches, or 33 cubic centimeters. Ice has a density of 0.92 g/cc, so each ice cube is about 30 grams, or 1 ounce. The latent heat of fusion of water is 334 J/g, so melting an ice cube requires 10kJ of heat. So...You will burn about 2 and 1/2 Calories per ice cube.
To atone for that 300 Calorie bag of potato chips, you could run for a half hour, or just eat 120 ice cubes. That's 8 trays of ice. Each gram of body fat stores 9 Calories. Five pounds of fat is 2.2 kilograms, or just under 20,000 Calories. 8,000 ice cubes will do the trick.
That's 22 ice cubes - about 2 trays of ice - every day for a year.
How much cold water would you need to drink to lose 5 pounds?
Most refrigerators are kept just above freezing - between 1 and 3 degrees C, while your body temperature is right around 37 degrees C. If you drink your cold water right out of the fridge, without letting it sit out for more than a minute or two, the temperature difference is about 35 degrees C. An 8-ounce glass of cold water is about 227 grams.
You will burn about 8 Calories for each 8-ounce glass of cold water you drink.
You'll need to drink 37 and a half glasses of cold water to negate that 300 Calorie bag of chips. It'll take 2,500 glasses of cold water or about 7 glasses every day for a year to rid you of five pounds.
How about if you drink ice water?
Let's say you drink 8 ounces of water at a time with 3 ice cubes per glass. You drink the water and eat the ice cubes.
Each glass of ice-water has about 16 negative Calories.
Only 19 glasses of ice-water will take care of the chips. That five pounds of fat? 1,300 ice cold glasses, or just 3 and a half glasses per day for the year.
Drink up!
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