Question 20Steam Plants - Assistant Engineer
70% to passWhich of the following chemicals is used in an Orsat apparatus to absorb carbon dioxide?
APotassium hydroxide
BCuprous chloride
CPyrogallic acid
DPotassium chromate
AI Explanation
The correct answer is A) Potassium hydroxide. Potassium hydroxide (KOH) is used in an Orsat apparatus to absorb carbon dioxide (CO2) from the gas sample being analyzed. The Orsat apparatus is a device commonly used to determine the composition of flue gases, including the concentration of CO2. Potassium hydroxide has a high affinity for CO2 and will selectively remove it from the gas mixture, allowing the remaining components to be measured. The other options are incorrect because: B) Cuprous chloride is used to absorb oxygen, not CO2; C) Pyrogallic acid is used to absorb oxygen, not CO2; and D) Potassium chromate is not typically used in an Orsat apparatus for gas analysis.
Related Questions
Q522:Oil flowing through the sight glass in the line between the lube oil gravity tan... Q561:The type of turbine shown in the illustration is classified as a Illustration S... Q65:Which of the following statements represents the primary function of handholes u... Q329:In a steam assist atomizer, the fuel oil/steam mix takes place entirely within t... Q348:Which of the following is the advantage of operating a typical closed feed water...
Ready to test your knowledge?
Take a Steam Plants - Assistant Engineer Practice ExamOfficial Resources