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What change takes place in the liquid inside a thermometer when it is placed into somthing cold?
The liquid inside the thermometer "contracts" when it is placed into something cold. This means that it decreases in volume and increases in density. This is the reason that the thermometer can measure heat: the volume of the liquid inside the thermometer changes as a function of heat, and the amount of liquid in the "tube" of the thermometer changes as a function of volume. Because of this relationship, the level of the liquid in the tube of the thermometer changes as a function of heat.
Why is loop flamed before it is placed in a culture tube?
To kill any bacteria on it.
Who element used of the glass tube of clinical thermometer to measure thermometer?
mercury
Explain how an ordinary glass fever thermometer is designed?
An ordinary glass fever thermometer is typically made of a sealed glass tube filled with mercury or dyed alcohol. It has a calibrated scale along the length of the tube to measure temperature. When the thermometer is placed in contact with a warm object, the temperature causes the liquid inside to expand and rise up the scale, indicating the temperature value.
What is a capillary tube in instrumentation terms?
a thermometer--
How does a thermomerator measure temperature?
that depends on what type of thermometer. The tube thermometer, the kind with a glass tube with a red liquid in it, uses a small amount of mercury in a very small tube. When the mercury is heated, it expands, pushing further up the tube, as it cools it contracts, going down the tube. A dial thermometer also works on expansion and contraction, but with a coil instead of mercury.
What is a thermometer bore?
A bore refers to the extremely fine or narrow tube found in a thermometer. It is called a narrow bore or a capillary.
Why we shouldn't shake a Laboratory thermometer?
Shaking a laboratory thermometer can cause the mercury inside to separate, leading to inaccurate temperature readings. It can also damage the delicate capillary tube inside the thermometer, affecting its overall precision and reliability. It's best to handle laboratory thermometers with care to ensure their accuracy and longevity.
What would be the effect of having the thermometer above the side arm of the three-way collecting tube?
Having the thermometer placed above the side arm of the three-way tube would result in inaccurate temperature readings. This location would not accurately measure the temperature of the liquid being collected and could lead to errors in the experimental data. It is essential to place the thermometer in close proximity to the liquid being measured for accurate results.
How do you use centrifuge to separate plasm in blood?
To separate plasma from blood using a centrifuge, the blood sample is first collected in a tube. The tube is then placed in the centrifuge and spun at high speeds, causing the blood components to separate based on their density. Plasma, being the lightest component, will rise to the top of the tube, allowing it to be easily pipetted off and collected for further analysis.
What is inside the glass tube from a thermometer?
either mercury or alcohol
Does mercury stay in the tube or escape into the air?
Mercury stays contained in the tube of a mercury thermometer when in use. It does not escape into the air as long as the thermometer is intact. However, if the thermometer is broken or improperly disposed of, mercury vapor can be released into the air, which is harmful to health.
