it is alcohol to disinfect the thermometer
The liquid expand from heat. We use these expansion to indicate temperature. Common thermometer liquid is Mercury and alcohol.
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.
A thermometer can be used to measure the temperature of a liquid. There are digital devices that don't need to come into contact to register the temperature.
Because that will mess with the temperature reading on the thermometer. And it would be dangerous if the thermometer is broken as there are dangerous chemicals (i.e.mercury) inside.
what do they use for the liquid in glass ball thermometer
The liquid in a clinical thermometer is often mercury. But there are thermometers that use a coloured alcohol.
it is alcohol to disinfect the thermometer
Mercury
The thermometer's reading of the point the liquid boils may not be accurate.
The liquid expand from heat. We use these expansion to indicate temperature. Common thermometer liquid is Mercury and alcohol.
We still use colored alcohol for our liquid in everyday thermometers.
A thermometer is not adequate in this situation.
Thermometer
a thermometer
If its a digital readout, no, because it has a limited number of readings, whereas a analogue (liquid ) thermometer has a (theoreticallly) unlimited number of readings.
Mercury the liquid inside thermometer is mercury.. but it is called thermometric liquid.