After the equilibrium represented above is established, some pure o2 (g) is injected into the reaction vessel at constant temperature. after equilibrium is reestablished, which of the following has a lower value compared to its value at the original equilibrium? a. keq for the reactionb. the total pressure in the reaction vesselc. the amount of so3 (g) in the reaction vessel d. the amount of o2 (g) in the reaction vessele. the amount of so2 (g) in the reaction vessel

Keq for the reaction (option a)

Explanation:

This is the equilbrium

2SO₂(g)  +  O₂(g)  ⇄  2SO₃(g)

The expression for Kc is this:

Kc = [SO₃]² / [O₂] . [SO₂]²

If we add O₂, we are increasing reactant side, so when we reach the new equilibrium, Kc will be lower.

Kc ↓ = [SO₃]² / [O₂] ↑ . [SO₂]²

- If we add O₂, total pressure will be increased.

- The amount of SO₃ will also increase. As we pertubate the reactant side, the reaction has to promote produc synthesis, to reach the new equilibrium.

Out of equilibrium we talk about Qc (quotient reaction) - The expression is the same but we apply Qc when we are not in eq.

Qc ↓ = [SO₃]² / [O₂] ↑ . [SO₂]²

If Qc < Kc  some reactants have to be transformed into products

- The amount of SO₂ is still the same.

- If we add O₂, partial pressure of it, will be increased, so the total pressure will also increase.

african americans demonstrated their newly found freedom by relocating often in search of relatives whom they had been separated from during slavery. others established schools to educate freed people and they built institutions such as churches and political organizations to advocate for their rights.

hydrocarbons are organic compounds that contain only hydrogens and carbons. they can be saturated (those which contain only carbon-carbon single bonds) or unsaturated (those which contain carbon-carbon double or triple bonds) in nature. hydrocarbons can undergo several reactions like substitution, elimination etc.  

on substituting one or more hydrogen atoms in hydrocarbon it results in the formation of haloalkane. as the halogen atoms are large compared to the carbon and hydrogen atoms, due to which the molecular weight increases and the bond become polar because of presence electronegative halogen atom and results in the increase in boiling point of the haloalkane.

thus, the correct option is (b) that is the boiling point of the new compound increases on substituting a hydrogen atom with a halogen in a hydrocarbon.