What is thermometry?
What is thermometer?
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A platinum resistance thermometer makes use of the variation of a conductor with temperature. If the resistance of this thermometer is `5 Omega " at "
Correct Answer - `631^(@)C`
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The range of temperature in a clinical thermometer, which measures the temperature of the human body, is
Correct answer is (B) 34°C to 42°C
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How a thermometer is calibrated?
1. For the calibration of a thermometer, a standard temperature interval is selected between two easily reproducible fixed temperatures. 2. The fact that substances change state from solid to liquid to...
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State the principle used to measure the temperature of a system using a thermometer.
When two or more systems/bodies are in thermal equilibrium, their temperatures are same. This principle is used to measure the temperature of a system by using a thermometer.
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Explain how thermal equilibrium is attained between thermometer and the patient holding thermometer, in mouth.
1. Thermometer indicating lower temperature is held in mouth by patient. 2. As body of patient is at higher temperature, heat energy is transferred from patient to thermometer. 3. When temperature of...
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What is thermometer? Explain with examples, the thermometric property used in a thermometer.
1. An instrument designed to measure temperature is called as thermometer. 2. Any property of a substance which changes sufficiently with temperature can be used as a basis of constructing a thermometer...
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State characteristics of thermometer.
1. Thermometer must be sensitive, i.e., a noticeable change in the thermometric property should be observed for a very small change in temperature. 2. It has to be accurate. 3. It should...
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List an advantage and a disadvantage of constant volume gas thermometer.
Advantage: There is no difference in temperatures recorded on two different constant volume gas thermometers. Hence, it is very accurate. Disadvantage: Constant volume gas thermometer is bulky instrument. Hence, it is not easily...
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(i) The triple-point of water is a standard fixed point in modern thermometry. Why? What is wrong in taking the melting point
(i) The triple point of water has been assigned a fixed value of 273.15 K. This number represents a unique value associated with a unique condition of temperature and pressure...
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Take some ice cubes in a beaker. Insert a thermometer. Heat the beaker continuously upto changed into water. The reading in thermometer
D) Increases then remains constant
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