What is thermometric property definition?


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Any body with at least one measurable property that changes with temperature can be used as a thermometer. Such a property is called thermometric property. The particular substance that exhibits changes in the thermometric property is known as the thermometric substance.

What is a thermometric property give an example?

A thermometric property is any physical property that changes measurably with temperature. Note: You must use the term ‘measurably’. Examples of thermometric properties: Length of a column of liquid, e.g. mercury and alcohol thermometers.

What is thermometric substance in physics?

The thermometric substance is the material used in the thermometer, whose property varies with temperature. In order to assemble a thermometer, we use a substance that has some physical property which changes constantly as the temperature changes. Such substance is known as a thermometric substance.

Is mass a thermometric property?

Any physical property that changes with temperature is considered as a thermometric property. Volume, resistance, pressure etc. are examples of thermometric properties. Mass which does not depend on temperature is not a thermometric property.

What is the thermometric property of resistance?

Resistance is the thermometric property. The electrical resistance of a conductor changes with temperature. For a metal, the resistance increases with increasing temperature. In a Thermistor the electrical resistance decreases rapidly with a small rise in temperature.

Is pressure a thermometric property?

Answer: A property which changes with temperature is called a thermometric property. These can include volume, pressure, electrical resistance, emf and colour. With one of these properties, a thermometer can be made.

What is the thermometric property of mercury?

Mercury is the only one in liquid state at room temperature. It’s used in thermometers because it has high coefficient of expansion. Hence, the slightest change in temperature is notable when it’s used in a thermometer. It also has a high boiling point which makes it very suitable to measure higher temperatures.

Is water a thermometric substance?

A. higher freezing point and low boiling point than other thermometric liquids.

Why is temperature a physical property?

The temperature is a physical property because it only gives the molecules of the material to possess kinetic energy, which causes random motion of the molecules inside the material, but it does not affect the molecular configuration which is associated with the composition.

Why is water not used as a thermometric property?

Water cannot be used in thermometer because of its higher freezing point and lower boiling point than other liquids . If water is used in a thermometer , it will start phase change at 0oC and 100oC and will not measure temperature , out of this range .

Is Colour of a gas a thermometric property?

A property which changes with temperature is called a thermometric property. These can include volume, pressure, electrical resistance, emf and colour. With one of these properties, a thermometer can be made.

What is the thermometric property of liquid in glass?

Liquid-in-glass thermometers are based on the principle of thermal expansion of substances. A liquid in a glass tube (called a capillary) expands when heated and contracts when cooled. A calibrated scale can then be used to read off the respective temperature that led to the corresponding thermal expansion.

What are the 4 types of thermometers?

  • Digital thermometers.
  • Ear (or tympanic) thermometers.
  • Infared thermometers.
  • Strip-type thermometers.
  • Mercury thermometers.

What’s thermometric liquid?

A fluid that has properties, such as a large and uniform thermal expansion coefficient, good thermal conductivity, and chemical stability, that make it suitable for use in a thermometer.

Is volume of a gas a thermometric property?

A thermometer that utilizes the thermal properties of gas. There are two forms of this instrument: 1) a type in which the gas is kept at constant volume, and pressure is the thermometric property; and 2) a type in which the gas is kept at constant pressure, and volume is the thermometric property.

What is different between heat and temperature?

Heat is a measure of change, never a property possessed by an object or system. Therefore, it is classified as a process variable. Temperature describes the average kinetic energy of molecules within a material or system and is measured in Celsius (ยฐC), Kelvin(K), Fahrenheit (ยฐF), or Rankine (R).

Is the volume of liquid a thermometric property?

Thermometric properties When a liquid is heated, it expands. This expansion may be related to the temperature of the liquid. If the volume of the liquid is calibrated with the temperature, then by using the existing scale, one may obtain the temperature by reading the volume of liquid.

Is alcohol a thermometer?

The alcohol thermometer is an alternative to the mercury-in-glass thermometer and has similar functions. Unlike mercury, alcohol is less toxic and will evaporate away quickly if subjected to high temperatures. Therefore, it is used to measure low temperatures.

Why is alcohol used as a thermometric liquid?

The expansion of alcohol is more than that of mercury for the same rise or fall of temperature, hence alcohol thermometer can measure temperature more accurately. The bright color of alcohol makes it easy to see on the glass capillary tube.

Why mercury is used as thermometric liquid?

Mercury is used in thermometers because It has a high coefficient of expansion so that even a small rise in temperature brings about sufficient expansion which can be detected in the capillary of the calibrated part of the thermometer.

What are the 5 uses of thermometer?

Thermometers are frequently used to monitor scientific processes in laboratories. Body temperature is measured with a medical or clinical thermometer. Laboratory thermometer is used to determine the room temperature of heated solids and liquids. Infrared thermometers can take readings from a distance.

What are 6 physical properties?

Familiar examples of physical properties include density, color, hardness, melting and boiling points, and electrical conductivity. We can observe some physical properties, such as density and color, without changing the physical state of the matter observed.

What is meant by physical properties?

Definition of physical property : a property (as color, hardness, boiling point) of matter not involving in its manifestation a chemical change.

Which physical properties are used to measure temperature?

(ii) Two physical properties used for measuring temperature are:- (1) Change in volume of liquid with temperature (2) Change in resistance. Others are: (3) Expansion of solids (4) Expansion of volume of gas. (b)(i) Determination of the upper – fixed point for a mercury-in-glass thermometer.

What is the difference between alcohol and mercury thermometer?

Alcohol thermometer and mercury thermometer are two types of thermometers which are composed of a bulb and a marked glass tube. The main difference between alcohol and mercury thermometer is that the bulb of mercury thermometer is filled with mercury whereas the bulb of alcohol thermometer is filled with an alcohol.

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