The ice and steam point on a mercury-in-glass thermometer are 10cm and 30cm respectively. Calculate the temperature in decree Celsius when the mercury meniscus is the 14cm mark
-
A.
20oC -
B.
30oC -
C.
34oC -
D.
70oC
Correct Answer: Option A
Explanation
(frac{x – 0}{100 – 0} = frac{14 – 10}{30 – 10})
x = (frac{100 times 4}{20} = 20^oC)