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Fahrenheit Scale

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Question

What is the temperature of the triple-point of water on an absolute scale whose unit interval size is equal to that of the Fahrenheit scale?

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Solution

Triple point of water $= 273 K$
Unit interval size in Fahrenheit
Scale $= \frac{9}{5} K$ . So,
Let $T$ be the triple point temp in absolute scale. Then,
$(T - 0) = \frac{9}{5} (273 - 0)$
$T = \frac{9}{5} \times 273 = 491.4 u n i t$

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