شرح للكيمياء و أسئلة مراجعة

[سحر البيان]

35. The Kc for the following reaction: CO(g) + 2H2(g) CH3OH(g) is 15.5 at 500 K.
For a system with the concentrations [CO] = 0.170 M, [H2] = 0.340 M, and [CH3OH] = 0.258 M one can conclude that:
(A) the system is not at equilibrium and the reaction will proceed to the right
(B) the system is at equilibrium and no change will occur
(C) the system is not at equilibrium and the reaction will proceed to the left
(D) the system is not at equilibrium and no change will occur


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36. The equilibrium constant for the following reaction: N2(g) + 3H2(g) 2NH3(g) is 70 at 350oC. A system at equilibrium has [N2] = 0.100 M and [H2] = 0.200 M. What is the [NH3]?
(A) 0.371
(B) 0.195
(C) 0.237
(D) 0.302

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