The upper fixed point in a clinical thermometer is typically the temperature of a healthy human body (e.g., 37 degrees Celsius). The lower fixed point is usually the temperature of melting ice (e.g., 0 degrees Celsius). These fixed points help calibrate the thermometer for accurate temperature measurements.
The lower fixed point of a clinical thermometer is the temperature of the ice point (0°C) and the upper fixed point is the temperature of the steam point (100°C at standard atmospheric pressure). These fixed points are used to calibrate the thermometer for accurate temperature measurements.
Digital thermometers typically provide more precise readings compared to clinical thermometers, as they are able to measure temperature with greater accuracy and display measurements to a decimal point. Clinical thermometers, such as mercury or alcohol-based, may have slight variations in accuracy due to human error in reading the temperature.
The lower fixed point in the Celsius scale is 0 degrees Celsius. This point is defined as the freezing point of water at sea level under standard atmospheric pressure.
Clinical thermometers typically do not contain markings above 42°C because fever temperatures above this point are considered to be extremely high and potentially life-threatening. The focus of clinical thermometers is on measuring normal body temperature and detecting moderate fevers accurately. Higher fever temperatures may require medical attention beyond what a clinical thermometer can provide.
Clinical thermometers are designed to measure body temperature range, which usually falls between 35-42 degrees Celsius. Starting at 0 allows for a more precise measurement in that range. Lab thermometers, on the other hand, are designed for a wider temperature range and can measure both negative and positive temperatures, hence they may start below 0.
The lower fixed point of a clinical thermometer is the temperature of the ice point (0°C) and the upper fixed point is the temperature of the steam point (100°C at standard atmospheric pressure). These fixed points are used to calibrate the thermometer for accurate temperature measurements.
upper fixed point is a temperature of stem from water boiling and standards atmospheric pressure lower fixed point is the temperature of pure melting ice.
Digital thermometers typically provide more precise readings compared to clinical thermometers, as they are able to measure temperature with greater accuracy and display measurements to a decimal point. Clinical thermometers, such as mercury or alcohol-based, may have slight variations in accuracy due to human error in reading the temperature.
Alcohol thermometers typically have a lower maximum temperature range compared to mercury thermometers, making them unsuitable for measuring the high boiling point of water. Alcohol thermometers may not accurately measure temperatures above their boiling point, which is lower than water's boiling point.
The lower fixed point in the Celsius scale is 0 degrees Celsius. This point is defined as the freezing point of water at sea level under standard atmospheric pressure.
Clinical thermometers typically do not contain markings above 42°C because fever temperatures above this point are considered to be extremely high and potentially life-threatening. The focus of clinical thermometers is on measuring normal body temperature and detecting moderate fevers accurately. Higher fever temperatures may require medical attention beyond what a clinical thermometer can provide.
There are several types of thermometers. Clinical thermometers are used to measure the body temperature of the patient. Ear Thermometers make it an accurate point to measure the body temperature. Pacifier thermometers are used to check the body temperature of babies or infants. Underarm thermometers are kept in the underarms to measure the body temperature. Not to mention the food thermometers that are often used for checking the heat of the oil or pop up to let you know when the meat is done.
Alcohol is used to measure at low temperatures because it has a lower freezing point than Mercury. Mercury has a higher boiling point than alcohol, mercury boils at around 400 Co and alcohol boils around 80 C0.
Clinical thermometers are designed to measure body temperature range, which usually falls between 35-42 degrees Celsius. Starting at 0 allows for a more precise measurement in that range. Lab thermometers, on the other hand, are designed for a wider temperature range and can measure both negative and positive temperatures, hence they may start below 0.
These days, Mercury is considered too risky to use in thermometers (due to the risk of them breaking and contaminating people). Alternate techniques are used today in clinical thermometer, including electronic thermometers and ones based on liquid crystals that aren't as harmful should they leak out and even contactless infrared thermometers..Mercury was used in clinical thermometers due to:Its high thermal expansion (25 °C) 60.4  µm·m−1·K−1Linearity in thermal expansionSensitivity to rise in temperature
The upper fixed point of a digital thermometer is typically set at the boiling point of water, which is 100 degrees Celsius or 212 degrees Fahrenheit. The lower fixed point is usually set at the freezing point of water, which is 0 degrees Celsius or 32 degrees Fahrenheit. These fixed points provide known reference temperatures for calibration and accuracy checks.
The lower fixed point of a thermometer is typically determined by immersing the thermometer in a mixture of ice and water. This point is known as the ice point, as it represents the temperature at which ice and water coexist in equilibrium under normal atmospheric pressure.