increasing N2

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increasing N2

Postby ursulavictorino1K » Sun Jan 12, 2020 6:55 pm

Why is it that if you increase N2 in the ammonia reaction, H2 will decrease?

Niharika 1H
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Re: increasing N2

Postby Niharika 1H » Sun Jan 12, 2020 7:09 pm

This is because increasing N2 would lead to the forward reaction being favored, increasing the concentration of NH3, and decreasing the concentration of H2.

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Re: increasing N2

Postby KSong_1J » Sun Jan 12, 2020 7:21 pm

If you increase the N2, then the equilibrium will want to shift towards the right to create more ammonia. Creating more ammonia requires using more N2 and H2, thus the amount of H2 will decrease

Chris Charton 1B
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Re: increasing N2

Postby Chris Charton 1B » Sun Jan 12, 2020 7:27 pm

Increasing N2 will result in a larger denominator for the Qp equation, resulting in a smaller value for Qp. When Qp is less than Kp, the reaction moves forward, meaning that more NH3 will be created from N2 and H2, resulting in H2 concentration decreasing.

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Re: increasing N2

Postby DLee_1L » Fri Jan 17, 2020 9:51 am

When you increase the amount of N2 in a system, the amount of H2 doesn't change. Since there is a sudden injection of H2 in the system at equilibrium, the reaction will want to start favoring the product (NH3). Therefore, both N2 and H2 are getting consumed and H2 concentration decreases relative to the original equilibrium concentration. (However, K does not change, the ratio of molarities is the same, but the actual molarity of H2 decreases)

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Re: increasing N2

Postby CynthiaLy4F » Fri Jan 17, 2020 10:00 am

When you increase the amount of N2, it will shift towards the products to make more ammonia. This will result in a decrease in the amount of H2 because the reactants are being used to make products.

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