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प्रश्न
Which of the following statement is incorrect?
पर्याय
1 gram of C – 12 contains Avogadro’s number of atoms.
One mole of oxygen gas contains Avogadro’s number of molecules.
One mole of hydrogen gas contains Avogadro’s number of atoms.
One mole of electrons stands for 6.023 × 1023 electrons.
उत्तर
1 gram of C – 12 contains Avogadro’s number of atoms.
APPEARS IN
संबंधित प्रश्न
Name the law om which same conditions of temperature and pressure
Define atomicity of a gas.
What are the main applications of Avogadro's law?
Samples of the gases O2, N2, CO2 and CO under the same conditions of temperature and pressure contain the same number of molecules represented by X. The molecules of Oxygen, occupy V litres and have a mass of 8 g. Under the same conditions of temperature and pressure:
In answering the above questions, which law have you used?
Choose the correct alternative :
The gas laws which relates the volume of a gas to the number of molecules of the gas is :
State Avogadro's Law
State : Avogadro's law
Differentiate between N2 and 2N.
Explain Why?
"The number of atoms in a certain volume of hydrogen is twice the number of atoms in the same volume of helium at the same temperature and pressure."
You have collected
- 2 litres of CO2
- 3 litres of chlorine
- 5 litres of hydrogen
- 4 litres of nitrogen and
- 1 litre of SO2,
under similar conditions of temperature and pressure. Which gas sample will have the greatest number of molecules? Justify your answer.
The gases chlorine, nitrogen, ammonia and sulphur dioxide are collected under the same conditions of temperature and pressure. The following table gives the volumes of gases collected and the number of molecules (x) in 20 litres of nitrogen. You are to complete the table giving the number of molecules in the other gases in terms of x.
| Gas | Volume (in litres) | Number of molecules |
| Chlorine | 10 | x |
| Nitrogen | 20 | |
| Ammonia | 20 | |
| Sulphur dioxide | 5 |
What is the value of Avogadro's number?
The value of Avogadro number _____
State the atomicity of Hydrogen.
State the atomicity of Sulphur.
You have collected
- 2 litres of CO2
- 3 litres of chlorine
- 5 litres of hydrogen
- 4 litres of nitrogen and
- 1 litre of SO2
under similar conditions of temperature and pressure. Which gas sample will have the least number of molecules? Justify your answers.
A gas cylinder can hold 1 kg of hydrogen at room temperature and pressure. If the number of molecules of hydrogen in the cylinder is X, calculate the number of carbon dioxide molecules in the cylinder. State the law that helped you to arrive at the result.
