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BTU/(lb⋅∘R)\text{BTU/(lb}{\cdot}^{\circ}\text{R)}

BTU per pound-Rankine

Specific heat capacityexact by definition

The BTU per pound-Rankine is exactly 4186.8 J/(kg·K), the same number as BTU/(lb·°F), because a Rankine degree and a Fahrenheit degree are the same size. It appears wherever a US calculation needs an absolute temperature, which is most of gas-cycle thermodynamics.

Watch out: Do not treat the °R and °F forms as different units needing a conversion between them. They differ only in which temperature scale the surrounding equation uses, and the specific heat number is identical.

1 BTU/(lb⋅∘R)\text{BTU/(lb}{\cdot}^{\circ}\text{R)} 4,186.8 J/(kg⋅K)\text{J/(kg}{\cdot}\text{K)}

One btu per pound-rankine in every specific heat capacity unit

4,186.8joule per kilogram-kelvin (J/(kg·K))
4,186.8joule per kilogram-Celsius (J/(kg·°C))
778.169foot pound-force per pound-Rankine (ft·lbf/(lb·°R))
4.1868kilojoule per kilogram-kelvin (kJ/(kg·K))
4.1868kilojoule per kilogram-Celsius (kJ/(kg·°C))
4.1868joule per gram-kelvin (J/(g·K))
1.00067calorie per gram-Celsius (cal/(g·°C))
1.00067kilocalorie per kilogram-Celsius (kcal/(kg·°C))
1BTU per pound-Fahrenheit (BTU/(lb·°F))
1BTU per pound-Rankine (BTU/(lb·°R))this unit
Solvers that use specific heat capacity

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formula.expert. (n.d.). BTU per pound-Rankine (BTU/(lb·°R)): definition & conversion. https://formula.expert/units/btu-per-pound-rankine