200
The number of calories required will depend on the mass of water which is to be heated.
2,641,760J...
raise the temperature of the body by 1 Celsius
mmmm enthalpy
4.2 × 105 J
The number of calories required will depend on the mass of water which is to be heated.
It depends on the liquid contained in the bottle and the material the bottle is constructed from. The definition of a Calorie is the amount of energy required to raise the temperature of one gram of water by one degree Celsius, therefore to heat 2 litres of water (which weighs 2000g) by 100 degrees C = 200.000 Calories. N.B. The water will be at 100 C, to convert into steam, the energy required for phase change must be considered. The effect of the bottle has been ignored in this answer. To add to the confusion: This definition is the "real" calorie as defined and used in physics and chemistry etc. The calorie used in food, exercise etc is really a kilocalory. It is abbreviated kcal, but is often read as calories, not kilokalories. If you mix this up, you get the wrong answer that a liter of cola contains approx 430 calories, but to heat it from 7 to 37 degrees celcius takes 30.000 calories.
there are no calories in water you idiot
1
540 calories are needed to turn one gram of water at 100 degrees celsius to steam.
This is the latent heat of vaporisation of water, which at standard pressure, is 539 calories (per gram).
it's 80 calories per gram. so you'd have to multiple 80 by 30 and you'll get 2400.
(5)(3)= 15 calories. 1 calorie is the energy (heat) to raise 1 gram of water by 1 degree celsius, so 5 grams of water (3 degrees Celsius) = 15.
It takes 80 calories per gram to increase the temperature of water by one degree. 4000 * 80 * 100 = 32000000 calories.
It will tell you on the back of the bottle.
that means more energy is needed to raise the temperature of 1kg of liquid from 1 Celsius than water.
There are two different kinds of calories, cal or Cal. Einstein uses calories (cal) as the energy needed to raise the temperature of 1 gram of water through 1 degree Celsius. The large calorie (Cal) is the energy needed to raise the temperature of 1 kilogram of water through 1 degree Celsius. This large calorie (Cal) is equal to one thousand small calories and often used to measure the energy value of foods.