Admin Table of Contents
- 1 What are the disadvantages of gas thermometer?
- 2 Which is not Favourable for ideal gas thermometer?
- 3 What is the advantage and disadvantage of thermometer?
- 4 How does an ideal gas thermometer work?
- 5 Which of the following is not correct for an ideal fuel?
- 6 Under what conditions of temperature and pressure would you expect gases to obey the ideal gas equation?
What are the disadvantages of gas thermometer?
Disadvantages of gas thermometers: (i) It is not a direct reading thermometer. (ii) It is not portable. (iii) It cannot measure accurately the rapidly changing temperatures.
Are gas thermometers accurate?
In so far as any gas behaves as an ideal gas at a sufficiently low pressure, any real gas can be used in an ideal gas thermometer and to measure any temperature accurately. In practice, the ideal-gas thermometer is not as convenient to use as other thermometers—like the mercury-in-glass thermometer.
Which is not Favourable for ideal gas thermometer?
b) The oxygen and hydrogen gas present in thermometers A and B respectively are not perfect ideal gases. Hence, there is a slight difference between the readings of thermometers A and B. At low pressure, these gases behave as perfect ideal gases.
What conditions are needed for an ideal gas?
The ideal gas law assumes that gases behave ideally, meaning they adhere to the following characteristics: (1) the collisions occurring between molecules are elastic and their motion is frictionless, meaning that the molecules do not lose energy; (2) the total volume of the individual molecules is magnitudes smaller …
What is the advantage and disadvantage of thermometer?
A thermometer comparison
| advantages | disadvantages |
|---|---|
| cheap | display is harder to read |
| durable | does not work below -39 C (Hg freezing pount) |
| accurate | cannot be used for thermograph |
| easily calibrated | slow response |
What are the advantages and disadvantages of resistance thermometer?
| THE RESISTANCE THERMOMETER (RTD) | |
|---|---|
| Advantage | Disadvantage |
| the platinum resistance detector is stable and resistant to corrosion and oxidation | RTDs do not allow point measurement of temperature because of the dimension of the sensing element |
How does an ideal gas thermometer work?
In gas filled temperature gauges (also called gas thermometers or gas-in-metal thermometers), a gas is used as the thermometric fluid instead of an liquid as it is in liquid-in-metal thermometers. In principle, this is a C-shaped bent tube in which an inert gas such as nitrogen, helium or argon is under high pressure.
What is an ideal thermometer?
A thermometer has to attain the temperature of the body fast. So it should draw as little heat from the body as possible so that the existing temperature of the body is not disturbed appreciably. Therefore, the heat capacity of an ideal thermometer should be as much small as possible.
Which of the following is not correct for an ideal fuel?
Coal and petrol are fossil fuels which means there will be the emission of carbon dioxide gas and many more which is harmful to the environment. CNG is a very good fuel but it cannot be considered an ideal fuel because it doesn’t show the exact properties of the ideal fuel. Therefore, all of them are not ideal gas.
Why does the ideal gas law fail at low temperatures?
The ideal gas law fails at low temperature and high-pressure because the volume occupied by the gas is quite small, so the inter-molecular distance between the molecules decreases. And hence, an attractive force can be observed between them.
Under what conditions of temperature and pressure would you expect gases to obey the ideal gas equation?
Real gases only obey Gas Laws at high temperature and low pressure. Because at these conditions the gas molecules have much empty spaces between them and the actual volume can be negligible.
What are the disadvantages of thermometer?