Arigid tank is divided into two equal volumes. one side contains 2 kmol of nitrogen n2 at 500 kpa while the other side contains 8 kmol of co2 at 200 kpa. the two sides are now connected and the gases are mixed and forming a homogeneous mixture at 250 kpa. find the partial pressure of the co2 in the final mixture.

The partial pressure of the in the final mixture is 200 kPa.

Explanation:

Pressure of nitrogen gas when the two tanks are disconnected = 500 kPa

Pressure of the carbon-dioxide gas when the two tanks are disconnected = 200 kPa

Moles of nitrogen gas =

Moles of carbon dioxide gas =

After connecting both the tanks:

The total pressure of the both gasses in the tank = p = 250 kPa

According to Dalton' law of partial pressure:

Total pressure is equal to sum of partial pressures of all the gases

Partial pressure of nitrogen =

Partial pressure of carbon dioxide=

The partial pressure of the in the final mixture is 200 kPa.

the electronic configuration of an atom with eight electrons is 1s²2s²2p⁴. the orbital diagrams are shown in the figure.

as per the hunds rule:

1. electrons tend to avoid being in the same orbital as per as practicable.

2. electrons in different orbitals of the same energy will have their spin parallel.

this can be illustrated from the multiplicity of the orbitals of the atom. as there are four electrons in the p orbital and p orbital has 3 sub-shells. the electrons can be fed in different ways as shown in the figure but the correct orbital diagram will be as per the hunds rule.

i think the answer is terrae but not 100 percent sure. ▓▬▬ §