Mercury is the only metal traditionally used in thermometers due to its unique properties, such as a consistent expansion and contraction with temperature changes, which allows for accurate measurements. It remains liquid at a wide range of temperatures, from -38.83°C to 356.73°C, making it ideal for measuring both high and low temperatures. Additionally, mercury's high density and low surface tension help it to rise smoothly within the thermometer tube, providing clear readings. However, due to health and environmental concerns, many modern thermometers now use alternative substances.
Lsten to your teacher and stop talking to your sitmate -GRade 7 -SUS-bryan
If I only had those 2 choices... I would use ALCOHOL since Mercury freezes at -38.72° Celsius. The North Pole can get down below -50° Celsius. Ethanol (alcohol) freezes at -114 ° Celsius Methanol (alcohol) freezes at -97.8° Celsius
Mercury is the only metal that is a liquid at room temperature, despite it's high density.
Mercury.
The liquid metal in many thermometer is mercury (Hg).
only in a thermometer
Mercury freezes at -38.83 °C (-37.89 °F) so it can only be used at temperatures higher than this.
The mercury in the thermometer's tube expands and contracts due to the surrounding temperature. As the mercury is inside a narrow tube, it can only expand upwards, and contract downwards.
Mercury is the only metal traditionally used in thermometers due to its unique properties, such as a consistent expansion and contraction with temperature changes, which allows for accurate measurements. It remains liquid at a wide range of temperatures, from -38.83°C to 356.73°C, making it ideal for measuring both high and low temperatures. Additionally, mercury's high density and low surface tension help it to rise smoothly within the thermometer tube, providing clear readings. However, due to health and environmental concerns, many modern thermometers now use alternative substances.
Mercury is rich in metals because only metallic grains could survive the high temperatures so near the Sun.
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.
Physical. The mercury doesn't change.
Actually, you should NOT. Mercury is very toxic.
To measure temperatures to an accuracy greater than only whole degrees.
Mercury is the only metal that remains liquid at room temperature and it expands and contracts evenly over a large temperature range of -40to +300 degrees. Unfortunately it is toxic when the thermometer breaks and so alcohol is replacing Mercury for every day -10 to 100degree C thermometers as used in school labs. Electronic temperature sensors,like thermocouples, are taking over for higher temperatures.
Mercury expands and contracts in response to temperature changes, causing it to rise or fall in the thermometer's tube. When the temperature increases, the mercury expands and moves up the scale, and when the temperature decreases, the mercury contracts and moves down the scale.