CHEMISTRY HELP PLEEEEASE?

[匿名]

2017-07-25 9:35 pm

1. Calculate the Keq for the formation of methyl alcohol at 100°C given that at equilibrium the [CO] = 0.314 M, the [H2] = 0.174 M, and the [CH3OH] = 0.0212 M. The reaction equation is CO(g) + 2H2(g) = CH3OH(g).

0.450
2.23
0.448
0.388

2. For the reaction F2(g) = 2F(g) at a particular temperature, the concentrations at equilibrium were observed to be [F2] = 3.3 x 10–2 mol/L and [F] = 4.6 x 10–4 mol/L. Calculate the value of the equilibrium constant from this data.

3.8 x 10–3
7.17 X 101
1.56 x 105
6.41 x 10–6

回答 (1)

戇戇居士

2017-07-25 9:47 pm

✔ 最佳答案

1.
CO(g) + 2H₂(g) ⇌ CH₃OH(g) .... Keq

Keq
= [CH₃OH] / {[CO] [H₂]²}
= (0.0212) / {0.314 × 0.174}
= 0.388

The answer is: 0.388

====
2.
F₂(g) = 2F(g) …. Keq

Keq
= [F]² / [F₂]
= (4.6 × 10⁻⁴)² / (3.3 × 10⁻²)
= 6.41 × 10⁻⁶

The answer is: 6.41 × 10⁻⁶

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