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In a 3.0 -L vessel, the following equilibrium partial pressures are measured: $\mathrm{N}_{2}, 190$ tor; $\mathrm{H}_{2}, 317$ torr; $\mathrm{NH}_{3}$ . $1.00 \times 10^{3}$ torr.$\mathrm{N}_{2}(g)+3 \mathrm{H}_{2}(g) \rightleftharpoons 2 \mathrm{NH}_{3}(g)$(a) How will the partial pressures of $\mathrm{H}_{2}, \mathrm{N}_{2}$ , and $\mathrm{NH}_{3}$ change if $\mathrm{H}_{2}$ is removed from the system? Will they increase,decrease, or remain the same?(b) Hydrogen is removed from the vessel until the partial pressure of nitrogen, at equilibrium, is 250 torr. Calculate the partial pressures of the other substances under the new conditions.

a) decrease.b) 60 torr

Chemistry 102

Chapter 13

Fundamental Equilibrium Concepts

Chemical Equilibrium

Aqueous Equilibria

University of Central Florida

Rice University

University of Toronto

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this question says that in a three liter vessel, the following equilibrium partial pressures are measured. 190 tour for end to 317 tour for H two and 1000 tour for an H three and this is that reaction and two in H two combining deformed and H three part. Ay says, How will the partial pressures of into each to an N H three change? If H two is removed from the system, will the increase decrease remain the same? So if you remove H two a shot, please. Principal tells us that we're going to move back towards the left towards reactant. So we're gonna fill in that hole that we've created. So we would expect end to an H two to go up to increase in partial pressure and N h three to go down or decrease in partial pressure. So let's write what those changes would be in this ice table. Since we're going to increase these become positive changes, this is plus X. This is plus three X, and this would be since we said this is going to decrease minus two X, and the number we know is that, um end to becomes 200 and 50. Tour is kind of tells us that we were correct in our guests of what is going to increase in what is going to decrease. And if this is true, we know therefore that X equals 60 tour, because the difference between 2 51 90 is 60. So then we could just fill these in plus three. X is going to e plus 180 and minus two. X is going to equal minus 1 20 so that our final answers will be 400 and 97 tour for H two and 800 and 80 tour for and H three.

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