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make sure to answer both parts:
1)Balance the following gas-phase reaction and
2)write its reaction quotient Qc:
SO3(g)......> <.....SO2(g) + O2(g)
Make sure to include the physical states of all reactants and products in your balanced equation.
I answered your heterogeneous question earlier (with KNO3==>KNO2 + O2). What is it you don't understand about these problems. You need to learn how to do these yourself and depend upon others. And is there something about Chegg you don't trust?
To balance the given gas-phase reaction, you need to make sure that the number of each type of atom is the same on both sides of the equation. Here's how you can do it:
1) Balance the number of sulfur atoms:
On the reactant side, there is one sulfur atom in SO3. On the product side, there is one sulfur atom in SO2. Therefore, the sulfur atoms are already balanced.
2) Balance the number of oxygen atoms:
On the reactant side, there are three oxygen atoms in SO3. On the product side, there are two oxygen atoms in SO2 and one oxygen atom in O2. To balance the oxygen atoms, you can multiply SO2 by 1/2 and O2 by 3/2:
SO3(g) -> SO2(g) + (3/2)O2(g)
Now, the number of oxygen atoms is balanced.
The balanced equation for the reaction is:
SO3(g) -> SO2(g) + (3/2)O2(g)
To calculate the reaction quotient Qc, you need to write an expression using the concentrations of the products and reactants. Since the given reaction is in the gas phase, the concentration is usually expressed in terms of pressure.
Qc = [SO2(g)] / [SO3(g)] * [O2(g)]^(3/2)
Here, [SO2(g)], [SO3(g)], and [O2(g)] represent the concentrations of SO2, SO3, and O2, respectively.
Note: The reaction quotient (Qc) is similar to the equilibrium constant (Kc), except Qc is calculated using the concentrations of reactants and products at any given time, whereas Kc represents the equilibrium concentrations.
Hope this helps! Let me know if you need further assistance.