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Thermal conductivity analyzers cannot be used in which of the following measurements?(a) Hydrogen in blast furnace gases(b) Determination of argon in oxygen in the process of air decomposition(c) Sulphur dioxide in roasting gases in production of sulphuric acid(d) Oxygen from a mixture of oxygen and nitrogenI have been asked this question during an interview.My enquiry is from Thermal Conductivity Analysers topic in division Industrial Gas Analysers of Analytical Instrumentation

Answer»

Correct choice is (d) Oxygen from a mixture of oxygen and NITROGEN

The explanation: THERMAL conductivity ANALYZERS cannot be USED in analysing oxygen from a mixture of oxygen and nitrogen. This is because the thermal conductivity of oxygen and nitrogen is ALMOST the same.



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