If θi is the inversion temperature, θn is the neutral temperature

Thermodynamics

If θi is the inversion temperature, θn is the neutral temperature, θc is the temperature of the cold junction, then

  1. θi - θc = 2θn
  2. θc - θi = 2θn
  3. θi + θc = θn
  4. θn = (θi + θc)/2

Answer

The neutral temperature is related to inversion and cold junction temperature by the following expression:

θn = (θi + θc)/2

The correct option is D.