A sealed flask containing 1.0 mole of H (g) and a sealed flask containing 2.0 moles of He(g) are at the same. 2 temperature. The two gases must have equal
1. masses
2. volumes
3. average kinetic energies
4. numbers of molecules
Your wrong^^^^ its 3!
The correct answer is: 4. numbers of molecules.
To understand why the number of molecules must be equal, we need to consider Avogadro's Law and the concept of molar quantities.
Avogadro's Law states that, under the same conditions of temperature and pressure, equal volumes of gases contain an equal number of molecules. This relationship allows us to use the concept of moles to compare different gases.
A mole is a unit used to express the amount of a substance. One mole of any substance contains Avogadro's number (approximately 6.022 × 10^23) of particles, which can be atoms, molecules, or ions.
In this case, we have one mole of H(g) and two moles of He(g). Since both the H and He gases are at the same temperature and pressure, according to Avogadro's Law, they must have an equal number of molecules.
Therefore, the correct answer is the number of molecules (option 4) because the moles of the gases determine the quantity of molecules and not the masses, volumes, or kinetic energies.
You need to clarify your question. Is that H(g) in one container (or H2). H(g) would be tough to get. Also, what is the 2 temperature mean?
Finally, what do you think the answers is and why?
A sealed flask containing 1.0 mole of H2(g) and a sealed flask containing 2.0
moles of He(g) are at the same temperature. The two gases must have equal
1. masses
2. volumes
3. average kinetic energies
4. numbers of molecules