1/2 life

[Tatum Keichline 2B]

Does the 1/2 life for first order depend on the initial concentration like it does for zero and second-order reactions?

[David Effio 1H]

No, if you look at the equation, the half-life only takes into account the rate constant, which is dependent on temp and activation energy only.

[Rachel-Weisz3C]

1/2 life for first order is the only order that is not dependent on initial concentration but just the reaction constant (k), with units 1/s.

[Danielle_Gallandt3I]

No, based on the half-life equations it is not affected by initial concentration, only the rate constant. This means that the half life is actually more dependent on other factors, such as temperature

[SydBenedict2H]

Why is it that for only the first order it isn't dependent on the initial concentration?

[Raj_Bains_2C]

The half-life for first order dow not depend on the initial concentration.

[Raj_Bains_2C]

The half-life for first order dow not depend on the initial concentration.

*does not*

[Casandra]

The 1/2 life for a first order does not depend on the initial concentration.