Consider the reaction $N_2(g) + 3H_2(g) rightleftharpoons 2NH_3(g)$. What is the effect of decreasing the volume on the combined gas?

Md Ariful Islam

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Md Ariful Islam

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In this scenario, $"Le Chatelier's principle"$ would predict that the equilibrium would be driven to the side of the reaction that exerts least pressure, i.e. the product side. Note that when we describe how the equilibrium changes, we would say that we are increasing the concentration of dinitrogen and dihydrogen by increasing their partial pressures.

This is one of the few ways we would manipulate this equilibrium in that the product is condensable (i.e. we could condense it out on a cold finger), but the reactant gases are non-condensable. What is the significance of this ammonia production to humanity?

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Using the following reaction, if 1.75 moles of nitrogen gas are reacted with excess hydrogen gas, how many moles of $NH_3$ will be produced? $N_2 + 3H_2 -> 2NH_3$?

Simply write out ratio of the known and unknown components: $(n(NH_3))/(n(N_2))=2/1$ $n(NH_3)=2n(N_2)=2xx1.75mol=3.5mol$

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In the reaction $N_2 + 3H_2 -> 2NH_3$, what volume of ammonia is produced when 5.0 L of Nitrogen react?

The stoichiometrically balanced equation, which you have written is: $N_2(g)+3H_2(g) rightleftharpoons 2NH_3(g)$ Given constant temperature and pressure, which we must assume, volume is proportional to the number of moles. And...

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How would you determine the number of moles of $N_2$ that are required to produce 12 mol of $NH_3$ using the equation: $N_2+ 3H_2 -> 2NH_3$?

There is no coefficient in front of the $N_2$ in the reactants. This means that there is one mole of $N_2$ required in the balanced equation. There is a...

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Given the equation:$N_2+3H_2 rarr 2NH_3$, what volume of $NH_3$ at STP is produced if 25 grams of $N_2$ is reacted with an excess of $H_2$?

One thing I think it's interesting to note is that you'll never be able to have that reaction happen in the standard temperature and pressure; you can, however, have the...

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How many grams of $N_2$ are required to completely react with 3.03 grams of $H_2$ for the equation $N_2 + 3H_2 -> 2NH_3$?

Notice the coefficients of $N_2$ and $H_2$. Since the equation has an $N_2$ and $3H_2$, $3$ times as many moles of $H_2$ will be used as $N_2$ assuming a complete...

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In the reaction $N_2(g) + 3H_2(g) -> 2NH_3(g)$, $N_2 = 10.00 M$, $H_2 = 8.00 M$, and $NH_3 = 2.00 M$. What is the equilibrium constant $K$, for this reaction?

Before doing any calculation, take a look at the values of the equilibrium concentrations for the three chemical species that take part in the reaction. Notice that the concentrations of...

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What is $K_(eq)$ for the reaction $N_2+3H_2 -> 2NH_3$ if the equilibrium concentrations are $[NH_3] = 3.0 M, [N_2] = 2.0M$, and $[H_2] = 1.0M$?

As you know, the equilibrium constant for a given chemical equilibrium depends on the equilibrium concentrations of the chemical species that take part in the reaction the stoichiometric...

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What is $K_(eq)$ for the reaction $N_2 + 3H_2 rightleftharpoons 2NH_3$ if the equilibrium concentrations are $[NH_3] = 3 M$, $[N_2] = 2 M$, and $[H_2] = 1 M$?

Use the definition of $K_(eq)$. $K_(eq) = (["products"]^(d,e,f, . . . ))/(["reactants"]^(a,b,c,. . . ))$ $= (["NH"_3]_(eq)^2)/(["H"_2]_(eq)^3["N"_2]_(eq))$ Just make sure you remember to use stoichiometric coefficients correctly. $3H_2$...

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Consider the following reaction at equilibrium: $2NH_3(g) rightleftharpoons N_2(g) + 3H_2(g)$ $DeltaH = +92.4 kJ$. What does Le Chatelier's Principle predicts will happen when adding $N_2(g)$ to the system at equilibrium?

See this for a few more details. describes how equilibria evolve under stress. I think the direction equilibrium change is fairly unambiguous should $[N_2]$ increase or decrease. See here...

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Given the equation representing a system at equilibrium: $N_2(g) + 3H_2(g) rightleftharpoons 2NH_3(g) + "energy"$, what changes occur when the temperature of this system is decreased?

$"Le Chatelier's principle states that when a system at....."$ $"equilibrium is subject to an external stress, the equilibrium"$ $"will move so as to oppose the external stress"$. As I...

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