What Is The Specific Heat Capacity Of Water
Camila Farah
Water has a high specific heat capacity which we ll refer to as simply heat capacity meaning it takes more energy to increase the temperature of water compared to other substances.
The specific heat is given at varying temperatures c and f and at water saturation pressure which for practicle use gives the same result as atmospheric pressure at temperatures 100 c 212 f. Water has a specific heat capacity of 4182 j kg c. This means it takes 4 2 joules of energy to raise 1 gram or 1 milliliter if you d rather think of the equivalent volume of 1 gram of water of water by 1 degree celsius. Material j kg k btu lbm f j kg c kj kg k aluminium 887 0 212 887 0 887 asphalt 915 0 21854 915 0 915 bone 440 0 105 440 0 44 boron 1106 0 264 1106 1 106 brass 920.
Isochoric specific heat c v for water in a constant volume isovolumetric or isometric closed system. The formula for specific heat looks like this. This is different from the kind of calorie we talk about in food. Volumetric heat capacity is only really useful for gasses though.
Above 300 f the specific heat capacity starts increasing significantly. Heat capacity is measured in j kg k. For liquid water the specific heat capacity is about 1 btu per pound mass per degree fahrenheit up until about 300 f. For example at a temperature of 25 c the specific heat capacity can vary with the temperature the heat required to raise the temperature of 1 kg of water by 1 k equivalent to 1 c is 4 179 6 joules meaning that the specific heat capacity of water is 4 179 6 j kg 1 k 1.
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The specific heat capacity of materials ranging from water to uranium has been listed below in alphabetical order.
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