Experiment #7 |
[A] |
[BC] |
[BC] |
[C] |
Initial |
4.0 |
2.6 |
1.0 |
2.0 |
Change |
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Equilibrium |
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Guess |
A |
BC |
BC |
C |
Reasonable (Y/N) |
1 |
3.0 |
2.0 |
2.0 |
3.0 |
(Yes/No) |
2 |
2.5 |
1.1 |
2.5 |
3.5 |
(Yes/No) |
3 |
2.2 |
.8 |
2.8 |
3.8 |
(Yes/No) |
4 |
1.85 |
0.45 |
3.15 |
4.15 |
(Yes/No) |
5 |
4.2 |
2.8 |
1.2 |
2.2 |
(Yes/No) |
6 |
4.5 |
3.1 |
.5 |
1.5 |
(Yes/No) |
Experiment |
Initial Amounts |
Final Amounts |
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1 |
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2 |
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3 |
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4 |
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5 |
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Experiment |
ratio of products/reactants |
1 |
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2 |
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3 |
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4 |
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5 |
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Guess |
A |
BC |
BC |
C |
K value |
1 |
3.0 |
2.0 |
2.0 |
3.0 |
|
2 |
2.5 |
1.1 |
2.5 |
3.5 |
|
3 |
2.2 |
.8 |
2.8 |
3.8 |
|
4 |
1.85 |
0.45 |
3.15 |
4.15 |
|
5 |
4.2 |
2.8 |
1.2 |
2.2 |
|
6 |
4.5 |
3.1 |
.5 |
1.5 |
large K:
position of equilibrium lies on the products side;
concentration of the products is greater than the concentration of the reactants;
small K:
position of equilibrium lies on the reactants side;
concentration of the reactants is greater than the concentration of the products;
1) reversing the reaction;
2) multiplying the chemical equation by a number.
Chemical Equation |
Equilibrium Constant (K) |
C(s) + CO2(g) 2CO(g) |
1.3 x 1014 |
CO(g) + Cl2(g) COCl2(g) |
6.0 x 10-3 |
Chemical Equation |
Equilibrium Constant (K) |
S(s) + O2(g) SO2(g) |
4.2 x 1052 |
2S(s) + 3O2(g) 2SO3(g) |
9.8 x 10128 |