Using this data, What is the activation energy of this reaction? Ea=___ (need un

Question

Using this data, What is the activation energy of this reaction?

Ea=___ (need units too)

What is the order of this reaction? O 0 C 2 Hints My Answers Give Up Review Part Now that we know that the reaction is first order, we know that the units of the rate constant will be inverse seconds. s what is the value of the rate constant for this reaction? Express your answer to three significant figures and include the appropriate units Next, the student ran the same reaction at a different temperature and measured a different reaction rate, with the following results:

Explanation / Answer

Here,

K1=0.0125 s-1

K2=0.0357 s-1

T1=295 K

T2=325 K

From arrhenius eq,

ln(K2/K1)=Ea/R (1/T1­ -1/T2)

ln(0.0357/0.0125)=Ea/8.314 (1/295 -1/325)

Ea=27884.86 J/mol

Or Ea=27.88 kJ/mol

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