What Are The Advantages And Disadvantages Of The Following Thermometric Fluids: Alcohol And Mercury?
The two liquids used in liquid in glass thermometers are mercury and alcohol. Below are some of the advantages and disadvantages associated with thermometric liquids. Advantages of mercury as a thermometric liquid. -It is a good conductor of heat and therefore the whole liquid reaches the temperature of the surroundings quickly. -It does not wet (cling to the sides of) the tube. -It has a high boiling point -It expands uniformly (linear expansion) and responds quickly to temperature changes, hence is sensitive. -It has a visible meniscus. Disadvantages -Mercury is very poisonous. -its expansively is fairly low -it is expensive -It has a high freezing point therefore it cannot be used in places where the temperature gets very low. Alcohol has a thermometric fluid -Alcohol expands uniformly. -It has a low freezing point (-115 degree centigrade) therefore it is very suitable for place where the temperature gets very low. -It has a large expansively -It is an easily available cheap liquid,
