Question

The triple point of carbon dioxide is 216.55 K the corresponding temperature on the celsius and Fahrenheit scale respectively are

• A. 56.45°C, -69.61°F
• B. -56.45°C, 69.61°F
• C. 56.45°C, 69.61°F
• D. -56.45°C, -69.61°F

Answer 1

Answer: (D)

-56.45°C, -69.61°F

Answer 2

As $T_{C} = (T = 273){^\circ}C$

$= 216.55 - 273 = - 56.45{^\circ}C$

Also $T_{F} = \frac{9}{5}T_{C} + 32 = \frac{9}{5} \times ( - 56.45) + 32$

$= - 101.61 + 32 = - 69.61{^\circ}F$