affect of temperature on K


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405318478
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Joined: Sat Jul 20, 2019 12:16 am

affect of temperature on K

Postby 405318478 » Sat Mar 07, 2020 4:26 pm

if a reaction is endothermic, and the temperature is raised, the rate constant of the forward reaction also is raised. Likewise, if a reaction is exothermic, does that mean with an increase in temperature k' will increase more than k of the forward reaction?

DarrenKim_1H
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Re: affect of temperature on K

Postby DarrenKim_1H » Sat Mar 07, 2020 5:09 pm

I believe for endothermic reactions, like you said if the temperature is raised forward rxn is favored.

In contrast, I believe for exothermic rxn, if T is raised backward rxn is favored

Daniel Chen 2L
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Joined: Fri Aug 30, 2019 12:15 am

Re: affect of temperature on K

Postby Daniel Chen 2L » Sun Mar 08, 2020 4:43 pm

If the reverse reaction is favored and k' is the constant for the reverse reaction, shouldn't that one increase as well? I mean, I know it's a constant, but since the temperature has an effect on k then it should change right?

Leila_4G
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Re: affect of temperature on K

Postby Leila_4G » Sun Mar 08, 2020 5:19 pm

@ Daniel Chen 2L , I am also curious about that...
Something else that confused me was when the textbook would say the temperature that did not seem like a standard temp, but then would say what k equals. I'm pretty sure that I should just use the k and note that the temp was only given for context.
I'm not missing some calculation for change in temp for the standard k at room temp, right?

Anish Natarajan 4G
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Joined: Thu Jul 25, 2019 12:16 am

Re: affect of temperature on K

Postby Anish Natarajan 4G » Sun Mar 08, 2020 5:24 pm

If the forward reaction is exothermic, then with an increase in temperature the reverse reaction is favored, meaning that k'>k


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