What are the properties of mercury and alcohol?

What are the properties of mercury and alcohol?

Answer: It expands linearly and less than alcohol and any other liquid. It is more durable than alcohol thermometer because mercury does not evaporate easily. It is smaller in size as compared to alcohol one.

What properties allow mercury to be used in a thermometer?

Mercury is the only metal that is in liquid state at room temperature. It is used in thermometers because it has a high coefficient of expansion which makes it easy to move in the thermometers as per the temperatures. Mercury has a boiling point which makes it suitable to measure higher temperatures.

Why is Coloured alcohol used in thermometers?

Mercury is not only way more expensive than the (higher) alcohols used in thermometers, but it is also very poisonous and bad for the environment (heavy metal). The silvery mercury column is also harder to read as compared to a coloured column. At very low temperatures (-39 C) it solidifies, while alcohols don’t.

What are the functions of alcohol in alcohol thermometer?

What is the function of alcohol in an alcohol thermometer? – Quora. Alcohol expands quickly with heat. Making it go up the scale faster than a lot of liquids would. It also has a low freezing point.

What properties does mercury have?

Mercury has a relatively high vapour pressure and the highest volatility of any metal, vapourizing to become a colourless, odourless gas. The metal is a fair conductor of electricity, but a poor conductor of heat. Mercury’s atomic number is 80.

What is difference between mercury and alcohol?

Alcohol thermometer and mercury thermometer are two types of thermometers which are composed of a bulb and a marked glass tube. The main difference between alcohol and mercury thermometer is that the bulb of mercury thermometer is filled with mercury whereas the bulb of alcohol thermometer is filled with an alcohol.

What are the chemical properties of mercury?

Mercury has a melting point of -38.9oC, a boiling point of 356.7oC, and is the only metal to remain in liquid form at room temperature. Droplets of liquid mercury are shiny and silver-white with a high surface tension, appearing rounded when on flat surfaces.

What are the properties of liquids that will make them suitable for use in liquid thermometer?

Mercury thermometers make use of the following properties of liquids:

• Liquids have no set shape. Because mercury has no set shape, it can conform to the shape of the glass tube that the thermometer is made from.
• Liquids expand when heated and contract when cooled. This is obviously very important for a thermometer.

What is the difference between mercury and alcohol thermometer?

Main Difference – Alcohol vs Mercury Thermometers A thermometer is a device that is used to measure the temperature. The main difference between alcohol and mercury thermometer is that the bulb of mercury thermometer is filled with mercury whereas the bulb of alcohol thermometer is filled with an alcohol.

What is the difference between alcohol thermometer and mercury thermometers?

What is the difference between Alcohol Thermometer and Mercury Thermometer? ¤ Mercury thermometer has mercury inside the bulb as the temperature sensitive fluid, and in alcohol thermometers, it is an alcohol. ¤ Since alcohol is non toxic, alcohol thermometers are much safer to use than the mercury thermometers.

What colors are used as dyes in thermometers?

The most commonly used colors as dye are blue or red. Alcohol thermometers are used in the place of mercury thermometers considering the safety of the chemical compound. Unlike mercury in the mercury thermometer, alcohol is less toxic and evaporates quickly.

What are the advantages and disadvantages of mercury thermometer?

Advantages of Mercury Thermometer 1 It can measure high temperatures 2 Mercury is visible without any dye 3 Expansion of mercury is regular 4 Mercury does not wet the capillary tub wall 5 It gives precise results

What is the boiling point of a mercury thermometer?

Mercury is a highly toxic liquid; therefore, it should be handled with care especially if the thermometer is broken. The freezing point of mercury is -38.83 °C and the boiling point is 357 °C. Therefore, mercury thermometers are best at measuring higher temperatures than the lower temperatures.