1)The equilibrium constant for the reaction 2NH3(g) --> N2(g) + 3H2(g) is K= 0.0
ID: 500033 • Letter: 1
Question
1)The equilibrium constant for the reaction 2NH3(g) --> N2(g) + 3H2(g) is K= 0.0250 at 300C. At equilibriumA) products predominate B) reactants predominantly C) only products are present D) roughly equal amounts of reactants and products are present
2)Which of the following is not Lewis base. A) NH3
B) H2O C) HO^- D) Cu^2+
1)The equilibrium constant for the reaction 2NH3(g) --> N2(g) + 3H2(g) is K= 0.0250 at 300C. At equilibrium
A) products predominate B) reactants predominantly C) only products are present D) roughly equal amounts of reactants and products are present
2)Which of the following is not Lewis base. A) NH3
B) H2O C) HO^- D) Cu^2+
A) products predominate B) reactants predominantly C) only products are present D) roughly equal amounts of reactants and products are present
2)Which of the following is not Lewis base. A) NH3
B) H2O C) HO^- D) Cu^2+
A) products predominate B) reactants predominantly C) only products are present D) roughly equal amounts of reactants and products are present
2)Which of the following is not Lewis base. A) NH3
B) H2O C) HO^- D) Cu^2+
Explanation / Answer
1. K = [N2] [H2]3 / [NH3]2
Given K = 0.0250 which is less than 1 at 300 oC. So concentrations of N2 and H2 are less than that of NH3 at equilibrium. So NH3 (reactant) is present more at equilibrium. B) reactants predominantly
2. Lewis base donates an electron pair. NH3, H2O and OH- can donate electrons but Cu+2 cannot. So Cu+2 is not Lewis base. D) Cu+2
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