Fahrenheit temperatures can be converted to Rankine by adding which of the following numbers to the Fahrenheit value?

• A. 32
• B. 100
• C. 459.67
• D. 273.15

Answer: (C)

Verified step by step guidance

1. Understand the relationship between the Fahrenheit and Rankine temperature scales. Both scales use the same size degree, but Rankine starts at absolute zero, similar to Kelvin for Celsius.
2. Recall that the Rankine scale is an absolute temperature scale based on Fahrenheit degrees, so to convert Fahrenheit (°F) to Rankine (°R), you need to shift the zero point to absolute zero.
3. Absolute zero in Fahrenheit is -459.67 °F, so to convert any Fahrenheit temperature to Rankine, you add 459.67 to the Fahrenheit temperature.
4. Express the conversion formula as: \(\text{Rankine} = \text{Fahrenheit} + 459.67\).
5. Therefore, the number you add to the Fahrenheit temperature to get Rankine is 459.67.