The two substances used in a liquid column thermometer are Mercury and alcohol. Mercury thermometers use mercury as the liquid inside the glass tube, while alcohol thermometers use colored alcohol such as ethanol or dyed ethanol.
The colored substance commonly used in a thermometer is typically either dyed alcohol or a non-toxic organic liquid like mercury. These substances expand and contract with changes in temperature, allowing the thermometer to measure temperature variations.
iodine and Mercury
Water - Galileo Galilei invented a rudimentary water thermometer in 1593 which, for the first time, allowed temperature variations to be measured
Silver has a lower coefficient of thermal expansion compared to the glass in a thermometer. This means that as temperature changes, silver would not expand or contract at the same rate as the glass, leading to inaccurate temperature readings. Additionally, silver could react with substances in the thermometer and corrode over time, affecting its durability and performance.
The red liquid in a liquid-in-glass thermometer is mineral spirits or ethanol alcohol mixed with red dye. A grey or silver liquid inside the thermometer is mercury. Mercury thermometers are not used anymore due to the dangers associated with mercury.
This could describe a thermometer. The only thing missing is the graduations. That way the height of the column can be associated with a specific temperature, the one that caused the column to be as high as it is.
When the temperature increases, the mercury in a thermometer expands and rises up the column because the volume of the liquid increases with temperature. This expansion is linear and is used to indicate the rise in temperature on the thermometer scale.
The colored substance commonly used in a thermometer is typically either dyed alcohol or a non-toxic organic liquid like mercury. These substances expand and contract with changes in temperature, allowing the thermometer to measure temperature variations.
We still use colored alcohol for our liquid in everyday thermometers.
A thermometer typically contains a liquid such as mercury or alcohol that expands and rises as temperature increases. A barometer contains a column of liquid (often mercury) that changes height in response to changes in atmospheric pressure.
A thermometer is used to measure air temperature, or the temperature within a solid or liquid.
Mercury
iodine and Mercury
The fractionation column is used to separate components of a liquid by distillation.
Liquid is used in a thermometer because it expands and contracts uniformly with changes in temperature, allowing for accurate temperature measurements. The liquid inside the thermometer expands and rises in the capillary tube as it gets warmer, providing a visible indication of temperature.
iodine and Mercury
A thermometer is most commonly used to measure the temperature of a liquid. Other methods, such as infrared thermometers or thermocouples, can also be used depending on the specific application and characteristics of the liquid.