Question

What is the use of insulating baffles in Boy’s thermometer?

(a) To deflect the gas upwards so that it can pass through the holes of the calorimeter

(b) To make the gas stable in copper tube

(c) To decrease the rate of heating

(d) To decrease the temperature of cold water which is obtained from inlet

I got this question in an online interview.

My query is from Determination of Calorific Value of Gaseous and Volatile Liquid Fuels in division Fuels and Combustion of Engineering Chemistry II

Answer 1

Correct answer is (a) To deflect the gas upwards so that it can pass through the holes of the calorimeter

For explanation I would say: The cold water is sent from the water inlet and the gas is in a chimney which is deflected downwards, for the mixing of gases with water the gases deflected upwards.