2017 Quiz 2

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Simone Seliger 1C
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Joined: Fri Sep 25, 2015 3:00 am

2017 Quiz 2

Postby Simone Seliger 1C » Sun Feb 19, 2017 11:55 pm

Can someone please explain why the answer to #5 is B) has a rate that does not change much with temperature? I am confused on this concept. Thanks!

Chem_Mod
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Re: 2017 Quiz 2

Postby Chem_Mod » Mon Feb 20, 2017 12:16 am

Could you include the question in the post? I don't know what you are referring to, we haven't had 2017 quiz 2 yet.

Simone Seliger 1C
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Joined: Fri Sep 25, 2015 3:00 am

Re: 2017 Quiz 2

Postby Simone Seliger 1C » Mon Feb 20, 2017 6:58 pm

Whoops! I meant Quiz 2 Preparation 2017. Question 5: "A reaction that has a very low activation energy ____" B) has a rate that does not change much with temperature

Korosh Bahrami
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Re: 2017 Quiz 2

Postby Korosh Bahrami » Mon Feb 20, 2017 9:09 pm

I don't think we have to know how to answer that question for the upcoming Quiz 2.

Casey Monahan 2C
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Re: 2017 Quiz 2

Postby Casey Monahan 2C » Tue Feb 21, 2017 9:50 am

Using the equation ln(k2/k1)=(Ea/R)(1/T1-1/T2), imagine Ea getting really really small. If Ea becomes zero, then multiplied by (1/T1-1/T2) we find that the temperature becomes insignificant, so it relies on the rate constants over anything else.


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