Factors Affecting k

[Sarah Zhari 1D]

Can the rate constant (k) of a reaction change? If so, how?

[Vinita Saxena 2I]

Yes, it can change if the temperature changes, that is the only way it can change

[Selena Yu 1H]

Yes, the rate constant can change. It can change due to temperature. The rate constant is related to temperature through the Arrhenius equation.

[Daniel Toscano 1L]

k = A exp( -EA/RT )
this shows how it can be changed

[Cindy Adiwidjaja 1B]

It can only change with temperatures.

[Myka G 1l]

The rate constant k is similar to the equilibrium constant K in that it is only affected by a change in temperature.

[Tanmay Singhal 1H]

temperature is the only way to change k

[Celine 1F]

rate constant can change due to temperature changes

[ShravanPatel2B]

Temperature can have an affect on the value of the equilibrium constant. This problem was also on the midterm i believe.

[Jacob Motawakel]

yes k can change, but only due to temperature.

[Michelle Xie 2B]

it changes with temperature.

[Leila_4G]

Also, k is a intensive property, not an extensive property, right?

[Matthew Tsai 2H]

Generally, k increases with temperature.

[Chris Charton 1B]

I believe we only go over temperature changing rate, however it can be changed by altering activation energy as well(adding or removing a catalyst)

It is related in the Arrhenius equation; k=Ae^(-Ea/RT)

I think we have to understand the concept of catalysts, but not necessarily how to compute an equation with them.

[SMIYAZAKI_1B]

The rate constant of the equation can alter in two ways: Changing temperature and addition of the catalyst. This can be considered as mixing salt into the water. If you add heat into the water, the molecules will vibrate even more which causes it to dissolve even more, and if you add some sort of proteins, it would be helpful to decrease the activation energy which means that because you don't need that much energy per reaction process, you can easily allow the equation to take place.

[905373636]

Yes, it can change if the temperature changes, that is the only way it can change

Isn't the addition of a catalyst also a way to change it?

[Alfred Barrion 2H]

k can only change when there is a temperature change.

[Moura Girgis 1F]

A change in temperature is a factor that would affect k

[Libby Dillon - 1A]

In lecture it was said that k can be affected by both temperature and activation energy. I think if these values remain constant, then k will go unchanged for the problem.

[MinjooPark_3I]

I actually learned this in Chem 20L but k depends on the temperature and catalysts(enzymes). I believe the catalysts lower the activation energy and increase reaction rate.

[Massimo_Capozza_1G]

The only way k can change is by a change in temperature

[DMaya_2G]

k can only change with temperature and the activation energy.

[Mursall M 2A]

The rate constant can only change if temperature changes!

[Sara Sandri 2B]

The only way a rate constant can change is if the temperature is changed.

[Sejal Parsi 3K]

Temperature is the only way to change K.

[VincentLe_3A]

The only factor which affects k is a change in temperature.

[Inderpal Singh 2L]

Temperature will change k, but we have not gone into it with too much detail I believe.