Laboratory thermometers are devices used to measure temperature . There are many types of lab thermometers such as differential, mechanical, logging, etc. Laboratory thermometers are progressively providing digital reading displays and are input-capable to computer and software programs for logging purposes.
What are the two uses of laboratory thermometer?
A laboratory thermometer, which is colloquially known as the lab thermometer, is used for measuring temperatures other than the human body temperature . It ranges from -10 ̊C to 110 ̊C. Laboratory thermometers are designed for lab purposes such as checking boiling point, freezing point, or temperature of other substances.
What is the function of a laboratory thermometer?
Laboratory thermometers measure temperature with a high level of precision for applications such as experiment monitoring, instrument calibration, materials testing, and maintaining a sterile work environment.
Where are laboratory thermometers used?
A laboratory thermometer is used to measure the boiling point and freezing point during science experiments . It is also used to measure the temperature of substances. It measures temperature ranging between -10 degree Celsius and 110 degree Celsius.
What is the use of laboratory thermometer Class 7?
A laboratory thermometer is used for measuring the temperature in a science laboratory . (1) A laboratory thermometer is made up of a long glass tube having a thin bore in it. (2) There is a glass bulb containing mercury which is joined at the lower end of the glass tube.
How do you handle a laboratory thermometer?
Place the end of the thermometer with the reservoir of liquid in the testing medium . For example, if you are testing the temperature of ice water, place the reservoir in the water, below the ice, but not touching the bottom of the flask or cup the water is held in. This will garner a more accurate temperature.
What is difference between laboratory and clinical thermometer?
| Clinical Thermometer Laboratory thermometer | Used to measure human body temperature Used to measure temperature in the laboratory | It has kink, which prevents immediate backflow of mercury It does not have a kink |
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What liquid is used in laboratory thermometer?
Liquid-in-glass thermometers are made of sealed glass and contain a fluid, usually mercury or red alcohol , whose volume changes relative to its temperature. The liquid expands as the temperature rises, rising in the tube and indicating the temperature.
What liquid is used in laboratory thermometer and why?
Why is only mercury used in clinical thermometer ? A clinical thermometer is used to measure human body temperature. It consists of a long glass tube which is graduated. A thermometric liquid is present within the tube which expands proportionally to temperature,hence measures it.
Which metal is used in thermometer?
Why is mercury used in thermometers despite being the poorest conductor of heat? Most metals are good conductors of heat and they are solids at room temperature. Mercury is the only one in liquid state at room temperature. It’s used in thermometers because it has high coefficient of expansion.
What is called laboratory thermometer?
A laboratory thermometer is a tool used in laboratories , places where scientists and science techs perform experiments and measure things. A laboratory thermometer can measure temperature very closely. A laboratory thermometer can be put into the liquid or other thing that the scientist wants to measure.
Who uses thermometer?
Meteorologists use thermometers to find out how hot it is or if it’s below freezing. Doctors use thermometers to check your body temperature — a very high or low body temperature means you’re sick.
When might you need to use a thermometer in the lab?
5. When might you need to use a thermometer in the lab? To make sure the experimental and the control groups are at the same temperature. To record the temperature at which a reaction occurs .
Is a device used for measuring temperature?
A thermometer is a device used for measuring temperature.
Why can’t doctors use laboratory thermometers?
We cannot use a laboratory thermometer in the clinics. ... A laboratory thermometer cannot be used to measure body temperature because it’s range is generally -10°C to 110°C, while normal body temperature is 37°C. Thus doctor do not use laboratory thermometers to measure body temperature of human beings in the clinics.
What is class 7 digital thermometer?
Digital thermometers are an advance to the existing clinical thermometers; Due to high toxicity of the Mercury present in clinical thermometers and difficulty in its disposal in cases when the thermometer breaks digital thermometers are manufactured that can measure the accurate temperature without the use of mercury.
