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 nitrogen
Answer:D
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 nitrogen
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.