Animalscaretips
The liquids found in most thermometers are mercury, alcohol or a hydrocarbon. Special care must be taken when a mercury thermometer is broken as mercury vapor is toxic. ... In order to obtain a correct temperature reading, total immersion thermometers should be completely immersed in the liquid or gas of interest.
- Why immerse a thermometer in a liquid before using it?
- Why is it important to not let the bulb of the thermometer to touch the sides of the container when taking measurements?
- What happens when the thermometer bulb is placed in cold water?
- What is a total immersion thermometer used for?
- Why must the thermometer be clamped into position?
- Why do you think it is a bad idea to use a thermometer to stir a solution?
- Should the bulb be completely submerged in the solution?
- Why must one be especially careful when dealing with a mercury thermometer?
- When heated iron ball is immersed in cold water its temperature decreases give reason?
- How does temperature affect water molecules?
- When a thermometer bulb is placed in hot water?
- What is importance of temperature?
- What is meant by immersion depth?
- What is immersion depth of thermometer?
Why immerse a thermometer in a liquid before using it?
The liquid should be well mixed to ensure a uniform temperature throughout its volume, and the thermometer should remain long enough in the liquid to ensure that it comes to thermal equilibrium at the temperature which is being measured.
Why is it important to not let the bulb of the thermometer to touch the sides of the container when taking measurements?
Suspend the reservoir (the tip) of the thermometer below the surface of the solution, but do not allow the tip to touch the walls or bottom of the container. If the thermometer bulb touches the container, the temperature of the glass will be measured instead of the temperature of the solution.
What happens when the thermometer bulb is placed in cold water?
When the thermometer is placed in cold water, the molecules slow down and their attractions bring them a little closer together bringing them down the tube. The red liquid is contained in a very thin tube so that a small difference in the volume of the liquid will be noticeable.
What is a total immersion thermometer used for?
Total immersion thermometers are designed to indicate temperatures correctly when just that portion of the thermometer containing the liquid is exposed to the temperature being measured.
Why must the thermometer be clamped into position?
The bulb part of the thermometer is positioned near the side arm of the Y-adaptor so that it monitors the temperature of the vapors. ... If it is positioned too high, it will be out of the path of the vapors and read lower than the true temperature.
Why do you think it is a bad idea to use a thermometer to stir a solution?
The thermometer, as you probably already know, is the instrument used to measure temperature. ... If you are stirring the liquid, make sure that the thermometer is not going to be bumped by the stir bar, otherwise, you could have a hazardous mess on your hands.
Should the bulb be completely submerged in the solution?
In order to determine the boiling point of a solution, the thermometer bulb must be completely immersed. Special precautions must be taken to prevent the occurrence of boiling by bumping, and the consequent rise of temperature of the solution above its boiling point.
Why must one be especially careful when dealing with a mercury thermometer?
Why must one be especially careful when dealing with a mercury thermometer? Mercury is highly toxic. If a mercury thermometer is broken, extreme care must be taken to clean up the mercury.
When heated iron ball is immersed in cold water its temperature decreases give reason?
When an iron ball at 60 degrees celsius is dropped in a mug containing water at 60-degree celsius. The heat will not flow from iron ball to water or from water to iron ball. It is because of the fact that both the substance the water and iron have the same temperature.
How does temperature affect water molecules?
An increase in temperature caused the water molecules to gain energy and move more rapidly, which resulted in water molecules that are farther apart and an increase in water volume. ... When water is heated, it expands, or increases in volume. When water increases in volume, it becomes less dense.
When a thermometer bulb is placed in hot water?
Item AM042005: When a glass thermometer is placed in hot water, the level of liquid rises because the molecules get farther apart. Heat causes the molecules of the liquid to get farther apart. The molecules of the liquid break down into atoms and take up more space.
What is importance of temperature?
Temperature plays a crucial role in medical care (both humans and animals), food, beverages, and agriculture. Our overall health is often reliant upon temperature in many ways as well. Maintaining proper temperature levels in medical cold storage areas is critical.
What is meant by immersion depth?
definition of the minimum immersion depth for a sensor is the depth at which the signal has decreased by 0.1 °C compared with the immersion depth used during the tolerance acceptance test. Further, the standard speci- fies that the measuring medium shall be water with a temperature of at least 85 °C.
What is immersion depth of thermometer?
A total immersion thermometer must be submerged to within 1 cm of the thermometer column's liquid level for an accurate reading, and adjusted as this level changes while measuring the temperature.
