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 has a high boiling point
-It expands uniformly (linear expansion) and responds quickly to temperature changes, hence is sensitive.
-It has a visible meniscus.
Disadvantages
-Mercury is very poisonous.
-its expansively is fairly low
-it is expensive
-It has a high freezing point therefore it cannot be used in places where the temperature gets very low.
Mercury thermometers are cheap, durable, accurate and easily calibrated, but the display is hard to read, they do not work below -39 degrees Celsius, and mercury vapor is poisonous. Alcohol thermometers have a lower freezing point, larger coefficient expansion and are less hazardous, but are less durable, lose fluid by evaporation and have a lower boiling point.
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 has a high boiling point
-It expands uniformly (linear expansion) and responds quickly to temperature changes, hence is sensitive.
-It has a visible meniscus
the glass could break causing a leak of mercury
the glass could break
They are more accurate than digitals.
three advantages of mercury in glass thermometer.
volume of the mercury
what do they use for the liquid in glass ball thermometer
The capillary tube of the thermometer ( in case of a mecury thermometer).
The Mercury expands with temperature. Since expansion is linear over the normal range of a mercury-driven thermometer, the level of mercury within a little glass tube indicates the current temperature of the thermometer's immediate environment.
-200 to 600 degree centigrade
Mercury is poisonous.
Mercury gives you AIDS
volume of the mercury
what do they use for the liquid in glass ball thermometer
mercury
German physicist Daniel gabriel Fahrenheit invented the mercury-in-glass thermometer
The capillary tube of the thermometer ( in case of a mecury thermometer).
Temperature Sensor
The red liquid in a thermometer is Mercury, which is usually encased in a glass tube
The sensor is just the mercury, a liquid metal.
For a classic thermometer: glass and mercury, colored ethanol or another liquid.
"thermal expansion"