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What makes a liquid in glass thermometer sensitive to a small changes in temperature?
Wiki User
∙ 8y ago
As the temperature rises or falls the liquid in the reservoir (bulb) of the thermometer rises or falls ) the liquid expands (heats up) or contacts (cools off). The volume change is made visible in the capillary (tube) in the part of the thermometer with the scale. This is the only part of the thermometer into which the extra volume and expand.Increasing the volume of fluid or decreasing the diameter of the capillary makes the changes more apparent/
Wiki User
∙ 8y ago
A liquid in glass thermometer is sensitive to small changes in temperature due to the thermal expansion of the liquid contained inside the glass tube. As the temperature increases, the liquid expands, causing it to rise up the calibrated scale of the thermometer. Conversely, as the temperature decreases, the liquid contracts, causing it to subside on the scale. This expansion and contraction of the liquid is highly responsive to even slight temperature variations, making it sensitive to small changes in temperature.
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Why the level of mercury should change at all when the bulb of the thermometer is brought in contact with another object?
a liquid changes its volume relative to its temperature
Ho does a thermometer measure temperature?
A thermometer measures temperature by using the liquid inside of the thermometer. It measures temperature by Celsius and Fahrenheit.
What are the properties which make mercury suitable for clinical thermometer?
Its a liquid at room temperature and it has a high rate of thermal expansion and contraction(changes volume with temperature).
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.
Whats the difference of fever thermometer and laboratory thermometer?
fever thermometer is used by the doctors and they are adjusted to body temperature whereas lab thermometer is adjusted to liquid temperature
What is a laboratory thermometer?
A laboratory thermometer is used to check the temperature, or changes in temperature, of an object with precise accuracy.
Is there any thermometer which changes its colour due to temperature change?
Yes,its called as "liquid crystal thermometer".
What makes a liquid-in-glass thermometer sensitive to a small change of temperature?
a bulb with a thin glass wall
Why is mercury is preferred in ordinary thermometers?
To measure the temperature calibrated in the thermometer. Mercury as a liquid reacts well to temperature changes. It expands as it gets warmer, so thermometers measure the rise of the mercury to measure temperature.
What changes takes place in the liquid inside a thermometer when the thermometer is placed into something hot?
The liquid in thermometers expands when temperature increases (and contracts when temperature decreases). When it expands, the only place for it to expand 'to' is up the thermometer (into the empty space above it).
Why the level of mercury should change at all when the bulb of the thermometer is brought in contact with another object?
a liquid changes its volume relative to its temperature
What measures the temperature of the liquid?
A thermometer will measure the temperature of a liquid.
What is used to measure temperature?
Temperature is usually measured via expansion/contraction of a liquid (liquid thermometer), differences in expansion/contraction of two metals (bi-metallic strip thermometer), changes in electrical resistance (thermistor or thermocouple) or radiant energy (for example: a pyrometer)
Is there inert gas inside a thermometer?
No. The tube inside a thermometer is vacuum. If there was a gas inside, the pressure changes due to temperature changes would cause the liquid inside to expand/contract unevenly.
Ho does a thermometer measure temperature?
A thermometer measures temperature by using the liquid inside of the thermometer. It measures temperature by Celsius and Fahrenheit.
What are the materials used for a Galileo thermometer?
A Galileo thermometer is a thermometer made of a sealed glass cylinder containing a clear liquid and a series of objects whose densities are such that they rise or fall as the temperature changes.
What are the properties which make mercury suitable for clinical thermometer?
Its a liquid at room temperature and it has a high rate of thermal expansion and contraction(changes volume with temperature).
