Answer:
7.5 mol of hydrogen would be needed to consume the available nitrogen.
Explanation:
- The balanced equation of the reaction of hydrogen with nitrogen is:
<em>3H₂ + N₂ → 2NH₃</em>
it is clear that 3mol of hydrogen react with 1 mol of Nitrogen to give 2 mol of ammonia.
- firstly, we need to calculate the number of moles of both
for H₂:
number of moles = mass / molar mass = (7.00 g) / (2.00 g/mol) = 3.5 mol.
for N₂:
number of moles = mass / molar mass = (70.00 g) / (28.00 g/mol) = 2.5 mol.
<u>using cross multiplication</u>
1 mol of N₂ needs → 3 mol of H₂
2.5 mol of N₂ needs → ??? mol of H₂
∴ the number of mol of H₂ needed = (3*2.5) / 1 = 7.5 mol
So, the right choice is:
7.5 mol of hydrogen would be needed to consume the available nitrogen.
Answer:
V is proportional to StartFraction n over p EndFraction.
Explanation:
Let us remind ourselves of the statements of both Boyle's law and Avogadro's laws.
Boyle's law states that, the volume of a given mass of gas is inversely proportional to its pressure at constant temperature.
Avogadro's law states that at the same temperature and pressure, equal volumes of gases contain equal number of molecules.
Hence ;
V α 1/P (Boyle's law)
V α n (Avogadro's law)
V α n/p (combination of Boyle's law and Avogadro's law)
Lower temperature
Let's verify
- Pressure=P
- volume=V
- Temperature=T
As per Boyles law
As per Charles law
So
At higher altitudes lower the pressure so lower the temperature
Answer:
I would say: D.
Explanation:
["Frequency is the number of times an object vibrates in 1 second; frequency is also measured in hertz and is recognized by your ears as differences in pitch."] Frequency is how many times an object vibrates in ONE second. So that knocks the answer down to either A or B. Frequency itself is also measured in hertz, which knocks the answer to: D. hertz per second.