The pressure on the gas of constant gas thermometer at the ice point is 325mm…

The pressure on the gas of constant gas thermometer at the ice point is 325mm of mercury and at the steam point is 875mm of mercury. Find the temperature when the pressure of the gas is 190mm of mercury

Correct Answer: Option B

Explanation

100(theta) …. 875mm
0(theta) ….325mm
(theta) …. 190mm
(frac{0 – theta}{100 – theta}) = (frac{325 – 190}{875 – 190})
(theta) = -25^oC
= 243k