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Chapter 17: Q4P (page 775)

Is K very large or very small for a reaction that goes essentially to completion? Explain.

Short Answer

Expert verified

The answer is,

No

Step by step solution

01

Equilibrium

The equilibrium constant is the ratio of the concentration of products to the ratio of the concentration of the reactants. The constant is represented by the letter K.

02

Explanation

The equilibrium constant K does not necessarily be a large value or a small value. But the large value indicates a higher concentration of products. A higher concentration of products gives the completion of a reaction. The small value indicates the higher concentration of the reactants. The reaction can reach the equilibrium condition when it goes to completion.

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Most popular questions from this chapter

Predict the effect of decreasing the temperature on the amounts of reactants in the following reactions:

(a) C2H2(g)+H2O(g)⇌CH3CHO(g)ΔHrxn0=-151kj

(b) CH3CH2OH(I)+O2(g)⇌CH3CO2H(I)+HO2(g)ΔHrxn0=-451kj

(c) 2c2H4(g)+O2(g)⇌2CH3CHO(g)(exothermic) (d)N2O4⇌2NO2(g)(endothermic)

Balance each reaction and write its reaction quotient, Qc:

(a)NO(g)+O2(g)𝆏N2O3(g)(b)SF6(g)+SO3(g)𝆏SO2F2(g)(c)SCIF5(g)+H2(g)𝆏S2F10(g)+HCI(g)

Question:Balance each of the following examples of heterogeneous

equilibria and write its reaction quotient, Qc:

(a)NaHCO3(s)֏Na2CO3(s)+CO2(g)+H2O(g)(b)SNO2(s)+H2(g)֏Sn(s)+H2O(g)(c)H2SO4(I)+SO3(g)֏H2S2O7(I)

For a problem involving the catalysed reaction of methane and steam, the following reaction table was prepared:



Explain the entries in the “Change” and “Equilibrium” rows.

What is the difference between the equilibrium position and the equilibrium constant of a reaction? Which changes as a result of a change in reactant concentration?
See all solutions

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