0.72 x 32
+
0.28 x 33
=23.04+9.24
=the atomic mass is 32.38
The force acting on the bag is equal and opposite to the force acting on the fist.
The fist creates the action force and the punching bag creates the reaction force.
The pressure of a gas is proportional to it's temperature and the volume of water.
<h3>What is gas pressure?</h3>
The pressure of a gas is the force it exerts per unit area on the walls of its container.
The pressure of a gas is proportional to the temperature of the gas. The higher the temperature, the higher the pressure and vice versa.
The pressure of a gas is also proportional to the volume of water in the container. The larger the volume of water , the higher the pressure.
Therefore, the pressure of a gas is proportional to it's temperature and the volume of water.
Learn more about gas pressure at: brainly.com/question/25736513
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:
Kelvin is considered to be the best scale for measuring temperature for two reasons: 1, Because the Kelvin scale defines what we mean by temperature. Other scales are now defined in terms of the Kelvin scale
Explanation: