Psuedo First Order

[Giselle1B]

What is psuedo first Order and how is it related to the first order process?

[Ariel Cheng 2I]

A pseudo first order reaction is like a second order reaction that acts like a first order reaction under certain conditions.

[Douglas Nguyen 2J]

A pseudo rate is considered when there are too many changing concentrations. For instance, it is difficult to calculate the rate when you have k[A][B], and both A and B are changing. As such, you make one significantly larger so that the rate becomes dependent on only the other.

For this example, let's say [A] is significantly larger than [B]. Because of that, the pseudo rate is k'=[B]

[Eesha Sohail 1D]

So this concept is generally used in the gathering of experimental data?

[Noe BM 1J]

Is the rate always going to depend on the reactant with smallest concentration?

A pseudo rate is considered when there are too many changing concentrations. For instance, it is difficult to calculate the rate when you have k[A][B], and both A and B are changing. As such, you make one significantly larger so that the rate becomes dependent on only the other.

For this example, let's say [A] is significantly larger than [B]. Because of that, the pseudo rate is k'=[B]

[Andrew Yoon 3L]

Is the rate always going to depend on the reactant with smallest concentration?

A pseudo rate is considered when there are too many changing concentrations. For instance, it is difficult to calculate the rate when you have k[A][B], and both A and B are changing. As such, you make one significantly larger so that the rate becomes dependent on only the other.

For this example, let's say [A] is significantly larger than [B]. Because of that, the pseudo rate is k'=[B]

I think it's the one with the smaller concentration because you just want to focus on one concentration rather than have 2 different concentrations that are changing.

[Lawrence Tran 2H]

This is just a question posed towards anyone, but are there any example problems involving pseudo first order (or is this concept even tested at all?

[LianaHernandez1F]

When concentrations are changing at an excessive rate, a pseudo rate is taken into account. For instance, figuring out the rate when both A and B are changing and you know k[A][B] is challenging. In order to make the rate reliant only on the other, you make one much greater.