Chern stry 12 Tutorial 1 - Characteristics of Dynamic Equlubrium In our previous

Question

Chern stry 12 Tutorial 1 - Characteristics of Dynamic Equlubrium In our previous examples you will recall that when we started with N204 or with NO2,things happened and equilibrium was eventually established. In general: If sufficient activation energy is available, systems at equilibrium will tend to move toward a position of equilibrium Self Test on Tutorial 1 - Characteristics of Dynamic Equilibrium This may be done right on this sheet. 1. Given the reaction: Norg) + CO(g) ± NO(g) + CO2 a) If one mole of NO2 and one mole of C0 are mixed in a 1.0 litre container, the rate of the forward reaction will initially be (fast / slow) Immediately after mixing, the rate of the reverse reaction will be c) While the forward rate > the reverse rate, the (NO] and the (CO2l will be (increasing / decreasing) d) After the initial mixing, the rate of the forward reaction will be ing. ing The rate of the reverse reaction will we Once equilibrium is established, what can be said about the rates of the forward and reverse reaction? f Once equilibrium is established, what is happening to the [NO? e) g Once equilibrium is established, what is happening to the ICO2l? h) Once equilibrium is established, what is happening to the [NO2l? D) Once equilibrium is established, what is happening to the ICO]? Page 8 Tutorial 1

Explanation / Answer

1.fast.since volume of the container is small

2.slow.the rate of backward reaction is always slow immediately after the mixing

3.increasing.

4.forward reaction -decreasing...reverse reaction- increasing

5.at equilibrium rate of forward and reverae reaction is same or equal

6.as soon as NO is prepared it immediately reacts with CO2 and forms NO2

7. As soon as CO2 is formed it immediately reacts with NO and form CO

8. As soon as NO2 is formed it reacts with CO and produce NO

9. As soon as CO is formed it reacts wth NO2 and form CO2

Actually in the last 4 questions ,when the equilibrium is established the concentration of the all the reactant and product will be same.they donot change

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