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.