Explain the Orsat Apparatus

Orsat Apparatus:

• The Orsat Apparatus is used to Analysis the products combustion, this is done by the process explained below.
• It consists of burette to measure and there are three flasks.
• There is a chemical in the flasks to absorb different types of gasses, like CO₂, O₂, CO.
• This flask has Potassium hydroxide (KOH), Pyrogallic acid which is an alkali, Cuprous chloride. this is to observe the gases.
• By the lowering, the leveling bottle a small number of combustion products gets into the measuring burette.

• This small amount of sample is passed through every flask which has reagents that are used to absorbs the gases.
• This sample is returned to the vessel where the volume is measured.
• At the absorption process, there is a volume decrease this used to represent the partial volume of each constituent
• Which has been absorbed. 
• In this, the CO₂ is taken as N₂ After the absorption which is remainder of flue gas.
• There is a sequence in absorption CO₂, O₂, and CO. 
• In this, if the Absorbent is used to absorbing O₂ which can absorb a small amount of CO₂, by this amount of CO₂ is less which is given by the Or sat apparatus if there is the first CO₂ is observed and next CO₂.
• The analysis of this apparatus gives on the due basis, this is given by the temperature which is lower than the dew point temperature of combustion temperature.

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