The triple points of neon and carbon dioxide are 24.57 K and 216.55 K respectively. Express these temperatures on the Celsius and Fahrenheit scales.

Given,

Triple point of Neon (TNeon) = 23.57 K


Triple point of Carbon dioxide (TCarbon dioxide) = 216.55 K


We know,


Tc = Tk – 273.15


Where, Tc is temperature in Celsius scale


Tk is temperature in Kelvin scale


Also,


Tf = (9/5)Tc + 32


Where, Tf is temperature in Fahrenheit scale


For Neon:


Tk = 24.57 K


Tc = Tk – 273.15


Tc = 23.57 – 273.15


Tc = -248.58 °C


And Tf = (9/5)Tc + 32


Tf = (9/5)(-248.58) + 32


Tf = -447.44 + 32


Tf = -415.44°F


For Carbon dioxide:


Tk = 216.55 K


Tc = Tk – 273.15


Tc = 216.55 – 273.15


Tc = -56.6 °C


And Tf = (9/5)Tc + 32


Tf = (9/5)(-56.6) + 32


Tf = -101.88 + 32


Tf = -69.88 °F


NOTE: The triple point of a substance is the temperature and pressure at which the three phases (gas, liquid, and solid) of that substance coexist in thermodynamic equilibrium.


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