(i) Gas thermometers are very sensitive because the expansion of gases is considerable. (ii) The gases have regular expansion. (iii) Gas thermometers have wide range of temperature scale. (iv) Permanent gases have close resemblance with perfect gas.
Moreover, what are the advantages and disadvantages of constant volume gas thermometer?
1 Answer
- 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 portable.
- As the expansion of gas is large, so the Gas thermometer are very sensitive.
- The gas expand uniformly and regularly over a wide range of temperature .
- The expansion coefficient of all gases is nearly the same, so thermometer using different gases give same reading.
People also ask, what are the disadvantages of liquid in glass thermometer?
Disadvantages. Liquid in glass thermometers tend to be fragile and hence easily broken, can only be used where the liquid column is visible, cannot be used for surface temperature measurements, cannot be read from a distance and are unsuitable for high temperature measurements.
What is the range of Vapour pressure thermometer?
These thermometers are very sensitive but the scale is not linear. The measurement accuracy is 1%. The typical temperature range is from – 20° C to 280° C depending on the nature of the gaz (Butane propane, ammonia…).
What is the use of Vapour pressure thermometer?
Construction & Working of Vapour Pressure Thermometer
Vapour pressure thermometer consists of a partially filled bulb (Fig. 1). This bulb is used as sensing element to measure temperature. When bulb senses the temperature, vapour will be formed above the liquid level inside bulb.
What is Vapour thermometer?
: a thermometer in which the variable saturated vapor pressure of a volatile liquid is used as a measure of the temperature and which thus has the advantage over some other types of thermometers of being free from errors due to bulb expansion.
Which is not suitable in Vapour pressure thermometer is?
Vapour-pressure Thermometers
| Type of equiprent | Application | Distant reading |
|---|---|---|
| Metal expansion | Gases | Not suitable |
| Liquid in glass | Solids and fluids | Not suitable |
| Liquid in steel | Solids and fluids | Up to 60 m |
| Gas expansion | Liquids | Up to 60 m |
Which of the following are the types of pressure thermometer?
Pressure spring thermometers are of three types:
- (i) Liquid expansion thermometer.
- (ii) Gas expansion thermometer and.
- (iii) Vapor actuated thermometer.