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If you observe the following reaction at equilibrium, is it possible to tell whether the reaction stated with pure \(N{O_2}\) or with pure \({N_2}{O_4}\)? \(2N{O_2}(g) \rightleftharpoons {N_2}{O_4}(g)\)

Short Answer

Expert verified

It's impossible to say whether a reaction starts from scratch \(N{O_2}\) or with nothing but pure \({N_2}{O_4}\).

Step by step solution

01

Definition of NO2 and N2O4

  • Nitrogen dioxide \(\left( {N{O_2}} \right)\) is a nitrogen-containing gas that belongs to the oxides of nitrogen category\(\left( {NOx} \right)\).
  • Dinitrogen tetroxide, also known as nitrogen tetroxide and amyl, is a chemical compound with the formula \({N_2}{O_4}\) In chemical synthesis, it is a helpful reagent.
02

Determine the equilibrium, is it possible to tell whether the reaction stated with pure \(N{O_2}\)or with pure\({N_2}{O_4}\)

The following reaction is assumed to be in equilibrium:

\(2N{O_2}(g) \mathbin{\lower.3ex\hbox{$\buildrel\textstyle\rightarrow\over{\smash{\leftarrow}\vphantom{_{\vbox to.5ex{\vss}}}}$}} {N_2}{O_4}(g)\)

If it's feasible to tell if the reaction started with pure sugar, that's great \(N{O_2}\)or with nothing but pure \({N_2}{O_4}\) it is necessary to explain whether or not this is the case.

The forward and backward (reverse) processes have identical rates in the equilibrium mixture.

For the following chemical reaction:

\(A \to B + C\)

The equilibrium constant will be expressed as:

\({K_C} = \frac{{(B\mid (C)}}{{(A)}}\)

The equilibrium concentrations of A, B, and C are (A), (B), and (C), respectively.

For the response:

\(2N{O_2}(g) \mathbin{\lower.3ex\hbox{$\buildrel\textstyle\rightarrow\over{\smash{\leftarrow}\vphantom{_{\vbox to.5ex{\vss}}}}$}} {N_2}{O_4}(g)\)

Equilibrium constant for the aforementioned reaction is defined mathematically as:

\(Keq. = \frac{{\left. {\mid {N_2}{O_4}} \right)}}{{\left( {{{\left. {N{O_2}} \right|}^2}} \right.}}\)

As a result, we may state that when both reactants and products are accessible, the equilibrium constant has a specified value.

It no longer matters from which side the reaction begins because the Equilibrium value is constant (for a specific reaction at a constant temperature) and the reaction will automatically reach Equilibrium after a specified amount of time. The concentrations of reactants and products will become constant at the point of equilibrium.

And it's impossible to tell whether a reaction originates from pure energy or not if looking at it from the point where it reaches equilibrium \(N{O_2}\)or with pure \({N_2}{O_4}\)

As a result, it's impossible to say if a reaction starts from scratch \(N{O_2}\) or with pure \({N_2}{O_4}\).

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Most popular questions from this chapter

Question: Calculate the number of grams of HI that are at equilibrium with 1.25 mol of H2 and 63.5 g of iodine at 448ยฐC.

A student solved the following problem and found the equilibrium concentrations to be \(\left[ {S{O_2}} \right] = 0.590M\), \(\left[ {{O_2}} \right] = 0.0450M\), and \(\left[ {S{O_3}} \right] = 0.260M\). How could this student check the work without reworking the problem? The problem was: For the following reaction at \(60{0^0}C\):

\(2S{O_2}(g) + {O_2}(g) \rightleftharpoons 2S{O_3}(g)\)

\({K_c} = 4.32\)

What are the equilibrium concentrations of all species in a mixture that was prepared with \(\left[ {S{O_3}} \right] = 0.500M\), \(\left[ {S{O_2}} \right] = 0M\)and \(\left[ {{O_2}} \right] = 0.350M\)?

Round the following to the indicated number of significant figures:

(a) 0.424 (to two significant figures)

(b) 0.0038661 (to three significant figures)

(c) 421.25 (to four significant figures)

(d) 28,683.5 (to five significant figures)

Calculate the equilibrium concentrations of NO, O2, and NO2 in a mixture at 250 ยฐC that results from the reaction of 0.20 M NO and 0.10 M O2. (Hint: K is large; assume the reaction goes to completion then comes back to equilibrium.)

\(2NO(g) + {O_2}(g) \rightleftharpoons 2N{O_2}(g)\quad {K_c} = 2.3 \times 1{0^5}\;at\;25{0^o}C\)

Write the mathematical expression for the reaction quotient\({Q_C}\), for each of the following reactions:

(a) \(C{H_4}(g) + C{l_2} \rightleftharpoons C{H_3}CI(g) + HCI(g)\)

(b) \({N_2}(g) + {O_2}(g) \rightleftharpoons 2NO(g)\)

(c) \(2S{O_2}(\;g) + {O_2}(\;g)\rightleftharpoons 2S{O_3}(\;g)\)

(d) \(BaS{O_3}(s)\rightleftharpoons BaO(s) + S{O_2}(g)\)

(e) \({P_4}(g) + 5{O_2}(g)\rightleftharpoons {P_4}{O_{10}}(s)\)

(f) \(B{r_2}(\;g)\rightleftharpoons 2Br(g)\)

(g) \(C{H_4}(g) + 2{O_2}(g)\rightleftharpoons C{O_2}(g) + 2{H_2}O(l)\)

(h) \(CuS{O_4} \times 5{H_2}O(s)\rightleftharpoons CuS{O_4}(s) + 5{H_2}O(g)\)

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