Question:-
Consider the following statements :
1. The gases measured directly by Orsat apparatus from a flue gas sample are CO2, O2 and N2.
2. Bomb calorimeter measures higher calorific value of fuel at constant pressure.
3. For burning 1 kg of fuel (carbon) to carbon monoxide, the stoichiometric quantity of air required is 8/3 kg.
Which of the statements given above is/are correct ?
Option (A)
Only 1
Option (B)
Only 2
Option(C)
Only 3
Option(D)
1, 2 and 3
Correct Option:
(C)
Question Solution:
1. The gases measured directly by orsat apparatus from a flue gas sample are CO2, O2 and CO. Chemical solution like KOH, Cuprous chloride and pyrogallol solution are used to absorb CO2, CO and O2 respectively.
2. The calorific value determined by the bomb calorimeter is higher calorific value at constant volume.
3. C + O2 ® 2CO
12 + 32 ® 2(12+16) = 56
12gm fuel requires 32gm air
\ 1 kg fuel = {(32 x 1) / 12}kg = (8/3)kg
question-answer-faq-9226