a thermometer records 680 mmHg at steam point and 440 mmHg at ice point. The temperature it records at 380 mmHg is
-
A.
-25oC -
B.
-20oC -
C.
20oC -
D.
25oC
Correct Answer: Option A
Explanation
(frac{440 – 380}{680 – 380} = frac{0 – x}{100 – x})
= -25oC