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Why is the wetbulb thermometer read lower than The dry bulb thermometer?
The wet bulb thermometer is typically read lower than the dry bulb thermometer because the evaporation of water on the wet bulb cools the sensor by removing heat from it. This process is known as evaporative cooling and results in a lower temperature reading on the wet bulb thermometer compared to the dry bulb thermometer.
Why you should not hold the thermometer by its bulb?
Holding the thermometer by its bulb can transfer heat from your hand to the bulb, affecting the temperature reading. This can lead to inaccurate results. It's best to hold the thermometer at the opposite end to prevent any interference with the measurement.
Why is the bore on a clinical thermometer narrower directly above the bulb?
The bore of a clinical thermometer is narrower directly above the bulb to slow down the expansion of mercury and provide a more accurate reading. This design helps to prevent sudden changes in temperature from affecting the reading, making the thermometer more precise.
What will happen if you hold a mercury thermometer from its bulb?
If you hold a mercury thermometer from its bulb, the heat from your hand can cause the mercury to expand and rise in the tube, giving an inaccurate reading. Additionally, mercury is toxic, so it is not safe to handle a broken thermometer. Always handle thermometers by the plastic casing to avoid these issues.
Why must the bulb of the thermometer be submerged in the water?
The bulb of the thermometer must be submerged in the water because that is where the temperature of the water is accurately measured. The bulb is the part of the thermometer that contains the temperature-sensitive material, such as mercury or alcohol, which expands or contracts depending on the temperature of the water. This expansion or contraction is then displayed on the thermometer scale, giving an accurate reading of the water temperature.
Is the wet bulb thermometer reading always higher than a dry bulb reading?
No, the wet bulb is always lower. Evaporation from the wet bulb reduces its temperature.
Why is the wetbulb thermometer read lower than The dry bulb thermometer?
The wet bulb thermometer is typically read lower than the dry bulb thermometer because the evaporation of water on the wet bulb cools the sensor by removing heat from it. This process is known as evaporative cooling and results in a lower temperature reading on the wet bulb thermometer compared to the dry bulb thermometer.
Explain how you would use a wet-bulb thermometer and a dry-bulb thermometer to find the relative humidity?
To find the relative humidity using a wet-bulb thermometer and a dry-bulb thermometer, first measure the air temperature with the dry-bulb thermometer. Then, moisten the wick of the wet-bulb thermometer and expose it to airflow while taking the temperature reading. The difference between the dry-bulb and wet-bulb temperatures can be used with a psychrometric chart or formula to calculate the relative humidity of the air. This process works because the wet-bulb thermometer cools down through evaporation, and the greater the difference between the two temperatures, the lower the relative humidity.
Where is the capillary tube and bulb in a thermometer?
The capillary tube is the hollow opening inside the thermometer that the liquid rises or lowers in so that you can read the temperature. The bulb is the bottom portion that holds the liquid and the part you use for contact to get a temperature reading. Calvin B.
Is The wet bulb thermometer reading is always higher than the dry bulb?
No, the wet bulb is always lower. Evaporation from the wet bulb reduces its temperature.
Is the wet bulb thermometer reading always higher than the dry bulb?
No, the wet bulb is always lower. Evaporation from the wet bulb reduces its temperature.
What are precautions that are to taken while measuring the temperature in clinical thermometer?
the mercury should be at normal body temperature level before using it the thermometer should be cleaned after use with normal water the bulb of the thermometer should not be touched
Why you should not hold the thermometer by its bulb?
Holding the thermometer by its bulb can transfer heat from your hand to the bulb, affecting the temperature reading. This can lead to inaccurate results. It's best to hold the thermometer at the opposite end to prevent any interference with the measurement.
Why is the bore on a clinical thermometer narrower directly above the bulb?
The bore of a clinical thermometer is narrower directly above the bulb to slow down the expansion of mercury and provide a more accurate reading. This design helps to prevent sudden changes in temperature from affecting the reading, making the thermometer more precise.
A bulb thermometer gives an indoor temperature reading of 21 degrees celsius A digital thermometer in the same room gives a reading of 20.7 degrees celsius Which device is more precise?
The digital thermometer is more precise because it can measure temperature to one-tenth of a degree (20.7 degrees), while the bulb thermometer can only measure to whole degrees (21 degrees). The difference in precision is due to the digital thermometer's ability to provide more detailed readings.
What will happen if you hold a mercury thermometer from its bulb?
If you hold a mercury thermometer from its bulb, the heat from your hand can cause the mercury to expand and rise in the tube, giving an inaccurate reading. Additionally, mercury is toxic, so it is not safe to handle a broken thermometer. Always handle thermometers by the plastic casing to avoid these issues.
Why must the bulb of the thermometer be submerged in the water?
The bulb of the thermometer must be submerged in the water because that is where the temperature of the water is accurately measured. The bulb is the part of the thermometer that contains the temperature-sensitive material, such as mercury or alcohol, which expands or contracts depending on the temperature of the water. This expansion or contraction is then displayed on the thermometer scale, giving an accurate reading of the water temperature.
