For the following reactions, determine the equilibrium constant equation.
1) CO2(g) + H2(g) CO(g) + H2O(g)
2) 2NO(g) + 2H2(g) N2(g) + 2H2O(g)
3) Cu(s) + 2Ag+(g) Cu2+(g) + 2Ag(s)
4) H2(g) + I2(g) 2HI(g)
To determine the equilibrium constant equation for each reaction, we need to write the balanced chemical equations for the reactions first.
1) CO2(g) + H2(g) → CO(g) + H2O(g)
2) 2NO(g) + 2H2(g) → N2(g) + 2H2O(g)
3) Cu(s) + 2Ag+(g) → Cu2+(g) + 2Ag(s)
4) H2(g) + I2(g) → 2HI(g)
Now, to write the equilibrium constant equation, we need to write the expression for the equilibrium constant (K) based on the balanced chemical equation.
For a general reaction:
aA + bB → cC + dD
The equilibrium constant expression (K) is given by:
K = [C]^c[D]^d / [A]^a[B]^b
Let's apply this to each of the reactions:
1) CO2(g) + H2(g) → CO(g) + H2O(g)
K = [CO(g)][H2O(g)] / [CO2(g)][H2(g)]
2) 2NO(g) + 2H2(g) → N2(g) + 2H2O(g)
K = [N2(g)][H2O(g)]^2 / [NO(g)]^2[H2(g)]^2
3) Cu(s) + 2Ag+(g) → Cu2+(g) + 2Ag(s)
K = [Cu2+(g)][Ag(s)]^2 / [Cu(s)][Ag+(g)]^2
4) H2(g) + I2(g) → 2HI(g)
K = [HI(g)]^2 / [H2(g)][I2(g)]
These are the equilibrium constant equations for the given reactions.