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Chapter 13: Problem 11

In which of the following cases does the reaction go farthest to completion? (a) \(K=10\) (b) \(K=1\) (c) \(K=10^{3}\) (d) \(K=10^{-2}\)

Short Answer

Expert verified
The reaction with the constant \(K=10^{3}\) goes the farthest to completion.

Step by step solution

01

Understanding the Reaction Quotient

The reaction quotient, K, is a measure of the ratio of concentrations of products over reactants at equilibrium. It indicates the extent of a reaction - whether it is more product-favored or reactant-faved.
02

Interpreting the Given Values

In the given exercise, four values of K are provided: \(K=10\), \(K=1\), \(K=10^{3}\), and \(K=10^{-2}\).
03

Determining the Reaction Extent

A larger K value signifies more products at equilibrium, thus indicating that the reaction has gone farther to completion. Here, \(K=10^{3}\) is the largest value of K among all the provided options, so it represents the reaction having gone the farthest to completion.

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Most popular questions from this chapter

The rate of forward reaction is two times that of the backward reaction at a given temperature and identical concentration, \(K_{\text {equilimbrium }}\) is, (a) \(1.5\) (b) \(0.5\) (c) \(2.5\) (d) \(2.0\)

With increase in temperature, equilibrium constant of a reaction (a) always decreases (b) always increases (c) may increase or decrease depending upon whether \(n_{p}n_{r}\).

What will be the equilibrium constant at \(717 \mathrm{~K}\) for the reaction $$ 2 \mathrm{HI}(\mathrm{g}) \rightleftharpoons \frac{1}{2} \mathrm{H}_{2}(\mathrm{~g})+\frac{1}{2} \mathrm{I}_{2}(\mathrm{~g}) $$ if its value for the reaction $$ \mathrm{H}_{2}(\mathrm{~g})+\mathrm{I}_{2}(\mathrm{~g}) \rightleftharpoons 2 \mathrm{HI}(\mathrm{g}) \text { at } 717 \mathrm{~K} \text { is } 64 ? $$ (a) 8 (b) 64 (c) \(\frac{1}{64}\) (d) \(\frac{1}{8}\)

In a reaction \(\mathrm{PCl}_{5}(\mathrm{~g}) \rightleftharpoons \mathrm{PCl}_{3}(\mathrm{~g})+\mathrm{Cl}_{2}(\mathrm{~g})\), the equilibrium concentrations of \(\mathrm{PC}_{5}\) and \(\mathrm{PCl}_{3}\) are \(0.4\) and \(0.2\) moles/litre respectively. If the value of \(K_{c}\) is \(0.5\), what is the concentration of \(\mathrm{C} 1_{2}\) in mole/litre? (a) \(1.0\) (b) \(1.5\) (c) \(0.5\) (d) \(2.0\)

In which of the following reaction is \(K_{p}\) less than \(K_{c} ?\) (a) \(\mathrm{N}_{2}(\mathrm{~g})+3 \mathrm{H}_{2}(\mathrm{~g}) \rightleftharpoons 2 \mathrm{NH}_{3}(\mathrm{~g})\) (b) \(\mathrm{PCl}_{5}(\mathrm{~g}) \rightleftharpoons \mathrm{PCl}_{3}(\mathrm{~g})+\mathrm{Cl}_{2}(\mathrm{~g})\) (c) \(\mathrm{H}_{2}(\mathrm{~g})+\mathrm{I}_{2}(\mathrm{~g}) \rightleftharpoons 2 \mathrm{HI}(\mathrm{g})\) (d) \(2 \mathrm{SO}_{3}(\mathrm{~g}) \rightleftharpoons 2 \mathrm{SO}_{2}(\mathrm{~g})+\mathrm{O}_{2}(\mathrm{~g})\)
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