0
What else can I help you with?
What do most substances like the liquid in a thermometer do when they are heated?
expand
Is the alcohol in a thermometer poisonous?
Alcohol is not the liquid in a candy thermometer. It is a proprietary mixture of chemicals. it is poisonous. Some of them now contain substances such as toluene.
Is the alcohol in a candy thermometer poison?
Alcohol is not the liquid in a candy thermometer. It is a proprietary mixture of chemicals. it is poisonous. Some of them now contain substances such as toluene.
What would you measure using a thermometer?
A thermometer is used to measure temperature. It can be used to check the temperature of objects, substances, or environments.
What is the liquid in a thermometer?
It can range from mercury to alcohol it depends on the manufacturer.
What is the substance in a thermometer that tells us the temperature?
The substance in a thermometer that tells us the temperature is usually mercury or alcohol. These substances expand or contract in response to temperature changes, allowing the thermometer to measure the temperature accurately.
Why does a red thermometer smell?
A red liquid inside a thermometer, often colored with mercury or alcohol, can emit a metallic smell when exposed to air as these substances are volatile. The smell is more noticeable when the thermometer is broken or if the liquid is spilled, releasing the odor into the air.
What are the two substances used in a liquid column thermometer?
The two substances used in a liquid column thermometer are mercury and alcohol. Mercury thermometers use mercury as the liquid inside the glass tube, while alcohol thermometers use colored alcohol such as ethanol or dyed ethanol.
What is the coloured substance used in thermometer?
The colored substance commonly used in a thermometer is typically either dyed alcohol or a non-toxic organic liquid like mercury. These substances expand and contract with changes in temperature, allowing the thermometer to measure temperature variations.
How do you tell how hot or cold something is?
use a thermometer.We can feel how hot or cold something is. However, sometimes things are just too hot or cold for us to feel safely. At other times we need to know exactly how hot or cold something is. When we need to measure temperature correctly we need to use an instrument called a thermometer. This measures temperature in degrees Celsius [sometimes called centigrade] or degrees Fahrenheit. There are different types of thermometers for different situations. A medical thermometer, for example, needs to be very accurate. It measures in fractions of degrees. When we are ill, even tiny changes in temperature are important. Some thermometers use a liquid that moves up a very fine glass tube. Most room thermometers, and outdoor thermometers are like this. The liquid is either mercury [ which is poisonous] or coloured alcohol. As liquids get warmer they expand [get bigger], and move up the tube. Water expands too, but not as much as alcohol and mercury. Thermometers that might be used by small children are not made of glass. They use a digital display which lights up the temperature. Inside the displays are chemicals that change colour according to the temperature.
How mercury functions in a thermometer?
Mercury, like most substances, expands when it gets hotter and contracts when it gets colder. A mercury thermometer is designed so that the volume of the mercury can be accurately observed, as the mercury rises or falls in a marked column.
Why do you have to leave a thermometer in a substance for some amount of time to get an accurate measurement of the substances temperature?
You need to leave a thermometer in a substance for a period of time to ensure thermal equilibrium is reached, meaning the thermometer and the substance have the same temperature. If the thermometer is removed too quickly, it may not have had enough time to adjust to the temperature of the substance, leading to an inaccurate reading. Additionally, the thermometer's materials may take time to respond to changes in temperature, further necessitating this wait.
