Q)What are the disadvantages of using alcohol as a thermometric liquid?
a)There are following cons of using alcohol as a thermometric liquid: Alcohol is a colourless liquid and hence, it requires colouring. It sticks to the walls of the glass tube which results in low accuracy. It has a low boiling point and it evaporates at a higher temperature
Q)What are the advantages as the thermometric liquid?
a)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 expands uniformly (linear expansion) and responds quickly to temperature changes, hence is sensitive.