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What should be done to enable a mercury in a glass thermometer to respond quickly to changes in temperature?
To enable a Mercury in a glass thermometer to respond quickly to temperature changes, it should be designed with a thinner glass casing to improve thermal conductivity. Placing the thermometer in direct contact with the surface being measured can also help it respond faster. Lastly, ensuring that the mercury is free from air bubbles can improve its responsiveness to temperature fluctuations.
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Why does a mercury-in-glass laboratory thermometer have a narrow capillary bore?
The narrow capillary bore allows for more precise measurement of temperature changes because the mercury expands and contracts more readily in the smaller tube. This enables the thermometer to detect even small variations in temperature accurately.
What is meant by responsiveness in thermometer?
Responsiveness in a thermometer refers to how quickly and accurately the thermometer reflects changes in temperature. A responsive thermometer will quickly show fluctuations in temperature without lagging behind the actual temperature changes. This is important for obtaining accurate and real-time temperature readings.
What helps a mercury in glass thermometer to respond quickly to change in temperature?
The thin glass tube and small bulb containing mercury in a mercury-in-glass thermometer allows for quick thermal equilibrium with the surrounding air. This design enables the mercury to rapidly expand or contract in response to temperature changes, causing the height of the mercury column to fluctuate and accurately indicate the temperature.
What are the properties which make mercury suitable for clinical thermometer?
Mercury is a good conductor of heat, allowing it to quickly reflect changes in temperature inside the thermometer. It has a wide range between its freezing and boiling points, making it suitable for measuring human body temperature. Lastly, mercury is non-toxic and easily visible, making it safe for clinical use.
What is meant by sensitivity of thermometer?
The sensitivity of a thermometer refers to how quickly and accurately it responds to changes in temperature. A high sensitivity thermometer will provide a quick and precise reading with even slight variations in temperature, while a low sensitivity thermometer may be slower to reflect changes in temperature.
Why does a mercury-in-glass laboratory thermometer have a narrow capillary bore?
The narrow capillary bore allows for more precise measurement of temperature changes because the mercury expands and contracts more readily in the smaller tube. This enables the thermometer to detect even small variations in temperature accurately.
What is meant by responsiveness in thermometer?
Responsiveness in a thermometer refers to how quickly and accurately the thermometer reflects changes in temperature. A responsive thermometer will quickly show fluctuations in temperature without lagging behind the actual temperature changes. This is important for obtaining accurate and real-time temperature readings.
What helps a mercury in glass thermometer to respond quickly to change in temperature?
The thin glass tube and small bulb containing mercury in a mercury-in-glass thermometer allows for quick thermal equilibrium with the surrounding air. This design enables the mercury to rapidly expand or contract in response to temperature changes, causing the height of the mercury column to fluctuate and accurately indicate the temperature.
What are the properties which make mercury suitable for clinical thermometer?
Mercury is a good conductor of heat, allowing it to quickly reflect changes in temperature inside the thermometer. It has a wide range between its freezing and boiling points, making it suitable for measuring human body temperature. Lastly, mercury is non-toxic and easily visible, making it safe for clinical use.
What is meant by sensitivity of thermometer?
The sensitivity of a thermometer refers to how quickly and accurately it responds to changes in temperature. A high sensitivity thermometer will provide a quick and precise reading with even slight variations in temperature, while a low sensitivity thermometer may be slower to reflect changes in temperature.
What are three different sorts of thermomenters?
Mercury thermometer: uses the expansion of mercury to measure temperature. Digital thermometer: uses electronic sensors to quickly and accurately measure temperature. Infrared thermometer: measures temperature by detecting the infrared energy emitted by an object.
Why is the thread of a thermometer narrow?
The narrow thread of a thermometer allows it to respond more quickly to changes in temperature. This design ensures that the thermometer provides a more accurate reading by allowing the liquid inside to expand or contract faster in response to temperature changes.
What part of the thermometer has the thin est glass?
The tip of the thermometer usually has the thinnest glass, as it needs to respond quickly to changes in temperature. This thin glass allows for more rapid heat transfer, providing a more accurate temperature reading.
Who made the first mercury thermometer?
Galileo invented an air thermometer in about 1600, but changes in atmospheric pressure made accurate measurement difficult. Liquids were quickly used instead and Gabriel Fahrenheit was the first to use alcohol (1709) and mercury (1714), in a thermometer.
Why was mercury chosen to be in a thermometer?
Mercury was chosen for thermometers because it has a high coefficient of expansion, meaning it is very sensitive to temperature changes and quickly expands or contracts. This makes it able to accurately indicate slight variations in temperature. Additionally, mercury remains liquid over a wide range of temperatures, making it suitable for use in thermometers.
What is the purpose of the bent constriction in the clinical thermometer?
The bent constriction in the clinical thermometer allows for the expansion and contraction of mercury or alcohol in response to temperature changes. This design prevents the column of liquid from falling back down too quickly, ensuring an accurate reading can be taken by the healthcare provider.
Why should liquid used in a thermometer be a good conductor of heat?
The liquid in a thermometer should be a good conductor of heat so it can quickly and accurately reflect changes in temperature. Good conductivity ensures that the liquid expands or contracts rapidly with changes in temperature, allowing for precise temperature readings.
