Which option lists the freezing point of water in Rankine as 491.67?

Study for the EPRI Heat Transfer and Fluid Flow Test. Prepare with flashcards and multiple choice questions, each with hints and explanations. Get ready for your exam!

Multiple Choice

Which option lists the freezing point of water in Rankine as 491.67?

Explanation:
The key idea is how to express temperatures on the Rankine scale, which is Fahrenheit-based but uses an absolute zero origin. The freezing point of water is 32 °F. Rankine converts by adding 459.67 to the Fahrenheit value, so 32 + 459.67 = 491.67 R. You can also see this by converting 0 °C to Kelvin (273.15 K) and then to Rankine: 273.15 × 9/5 = 491.67 R. So 491.67 is the Rankine value for the freezing point. The other numbers correspond to different scales or points: 273.15 is 0 °C in Kelvin, 0 is absolute zero in Rankine, and 212 is the boiling point in Fahrenheit.

The key idea is how to express temperatures on the Rankine scale, which is Fahrenheit-based but uses an absolute zero origin. The freezing point of water is 32 °F. Rankine converts by adding 459.67 to the Fahrenheit value, so 32 + 459.67 = 491.67 R. You can also see this by converting 0 °C to Kelvin (273.15 K) and then to Rankine: 273.15 × 9/5 = 491.67 R. So 491.67 is the Rankine value for the freezing point. The other numbers correspond to different scales or points: 273.15 is 0 °C in Kelvin, 0 is absolute zero in Rankine, and 212 is the boiling point in Fahrenheit.

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