Heat capacity is a physical property of a material. It is denoted by the variable "C" with the subscript "p." Heat capacity is defined by the amount of heat that it takes to change the temperature of material a certain number of degrees. The units for heat capacity differ between measuring standards. One unit is BTU/(lb * F) and another is Joules/(g * K). Joules are more commonly used in the United States, while British Thermal Units are used abroad.
Instructions
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1
Locate the heat capacity value in Joules per gram Kelvin. The unit notation will read J/(g*K).
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2
Divide the value by 1,055. There are 1,055 Joules in one BTU.
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3
Divide the result from Step 2 by 1.8. There are 1.8 degrees Fahrenheit in 1 Kelvin.
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4
Multiply the result from Step 3 by 454. There are 454 grams in 1 pound. The resulting value is the heat capacity in BTU per pound Fahrenheit, or BTU/(lb*F).