At 700 K, the reaction 2SO2(g) + O2(g) 2SO3(g) has the ...

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Question 1

At 400ºC, K_c = 64 for the equilibrium H₂(g) + I₂(g) 2HI(g).  If 3.00 mol H₂ and 3.00 mol I₂ are introduced into an empty 4.0 L vessel, find the equilibrium concentration of HI at 400ºC.
◦ 0.15 M
◦ 1.2 M
◦ 2.4 M
◦ 4.8 M
◦ 5.8 M

Question 2

At 700 K, the reaction 2SO₂(g) + O₂(g) 2SO₃(g) has the equilibrium constant K_c = 4.3 × 10⁶ , and the following concentrations are present:  [SO₂] = 0.10 M; [SO₃] = 10. M; [O₂] = 0.10 M.  Which of the following is true based on the above?
◦ Q_c> K_c, the reaction proceeds from left to right to reach equilibrium
◦ Q_c> K_c, the reaction proceeds from right to left to reach equilibrium
◦ Q_c< K_c, the reaction proceeds from left to right to reach equilibrium
◦ Q_c< K_c, the reaction proceeds from right to left to reach equilibrium
◦ Q_c = K_c, the reaction is currently at equilibrium

[dianagarcia]

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