Understanding Thermometers and Mercury

What type of thermometer is commonly used in laboratories to measure temperature?

• Digital thermometer

• Bimetallic thermometer

• Infrared thermometer

• Mercury thermometer

What is the sensitivity of the thermometer that ranges from -10 to 110 degrees Celsius?

• 2 degrees Celsius

• 1 degree Celsius

• 5 degrees Celsius

• 0.5 degrees Celsius

What is the sensitivity of the thermometer that ranges from 0 to 360 degrees Celsius?

• 5 degrees Celsius

• 2 degrees Celsius

• 0.5 degrees Celsius

• 1 degree Celsius

Why is mercury preferred in thermometers over other liquids?

• It is a good heat conductor

• It is cheaper

• It is colorful

• It is non-toxic

Which property of mercury prevents it from sticking to the walls of the thermometer?

• High viscosity

• Low boiling point

• Non-wetting nature

• High density

How does the visibility of mercury compare to alcohol in thermometers?

• Mercury is less visible

• Alcohol is more visible

• Mercury is more visible

• Both are equally visible

Which of the following is NOT an advantage of using mercury in thermometers?

• Non-wetting

• Visible

• Good heat conductor

• Transparent

What is one way to increase the sensitivity of a mercury thermometer?

• Use a thicker wall

• Use a larger bulb

• Use a wider capillary tube

• Use a thin wall

Why is a small diameter capillary tube used in thermometers?

• To make it easier to read

• To increase the thermometer's durability

• To reduce cost

• To enhance sensitivity to volume changes

What happens if the wall of the thermometer is too thick?

• It becomes more sensitive

• It takes longer for heat to transfer

• It becomes more accurate

• It becomes less durable