10) reaction A B rightleftharpoons C D constant balance of 9 if mixed A 2 mol / DM
3 B 2 and mol / DM
3 together. B C live and each few mol / DM
1 3 at equilibrium. 0 2
, 2. 0.5 1.5
, 3. 1 1
, 4,. 0.3 0.8
.11) dissolution of A as follows 2Arightleftharpoons 2B C when starting from A 0.10 mole per cubic decimeter, it was found that the balance only 0.02 mole per cubic decimeter? Find the equilibrium constant of the reaction B frac} {} {1 2 C rightleftharpoons A
1. 0.64
2. 0.80
3. 1.25 4. 1.56
.12) dissolved in ethanol and acetic acid as 1.00 mol in water at high temperature, the total volume of solution of 250 cm
.3 at equilibrium showed that acetic acid was used to 25 percent of volume filling. Then calculate the constant of the balance of the reaction C_2H_5OH
(AQ). CH_3COOH (AQ) rightleftharpoons CH_3COOC_2H_5 (AQ) H_2O (L)
1. 0.11
2. 0.33
3. 1.00 4. 1.11
.13) hydrogen cyanide. May be prepared from the reaction between carbon monoxide and gas ammonia as follows:
2CO (g) NH_3 (g) rightleftharpoons HCN (g) CO_2 (g). H_2 (g)
.This reaction is endothermic reaction, and the CO NH_3 reacted in a closed container, which 800 ˚ C. It was found that the equilibrium concentration of gas and CO NH_3 HCN equals, and 0.050 0.025 0.084 mol / L respectively. ค่าคงที่สมดุล much
. 1. 20.16
2.9.48
3. 0.47
4. 0.11
14) experiments following any system will cause HCN is higher than the gas in the 15.
1. Experiment like the original, but let's 800 ˚ C. Longer than the original
2. Experimental intact, but reduce the volume of the system of a down half
3.Fill the substances that can absorb hydrogen into
4.? Add aluminium hydroxide, which is a catalyst
15) reaction N_2 (g) O_2 (g) rightleftharpoons 2NO (g) is profitable กิริยาคา dead heat temperature, 2 000 ˚ C. Constant equilibrium of the reaction of 4.0times 10
{- 4} if the concentration of reactants at the equilibrium of O_2 [] = [N_2] = 0.1 mol / DM
3, consider the following: (a), 1 000 ˚ C. Equilibrium constant of the reaction is less than 4.0times 10
{- 4}
.(b) reaction 2NO (g) rightleftharpoons N_2 (g) O_2 (g) is a reaction endothermic
(c), 2 000 ˚ C NO concentration []. As 2.0times 10
{- 3} mol / DM
3
(d) if reduce the concentration of O_2 (g) it will affect the concentration of N_2 (g) reduced any conclusions correct 1
. (a), (b). And (c)
2.(b) and (c)
3. (b) and (d)
4. (c) and (d)
16) equilibrium constant of reaction. PbSO_4 (s) rightleftharpoons Pb
2 (AQ) SO
{-}} {4 2 _ (AQ) equals 1.44times 10
- 8 in saturated solution of PbSO_4 100 cm
3. There will be PbSO_4 melted in the few grams (Pb =, =, 207 S 32 O = 16)
1. 1.2 times 10
{- 3}
2. 1.2 times 10
{- 4}
3. 3.636 times 10
{- 2}
4. 3.636 times 10
{- 3}
17) when the mixed solution Fe (, 2) s (II). Chloride with silver nitrate solution is sediment money occurs. Write balanced equation as follows: Fe
{2} (AQ) Ag
(AQ) rightleftharpoons Fe
{3} (AQ) Ag (s)
.When the concentration of any type the following To make the amount of sediment reduction of money 1. Sodium chloride
2. Fe (, 2) s (II) chloride
3. Silver nitrate
4. Fe (, 2) s (III) chloride
.
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