Dinitrogen tetraoxide, n2o4, decomposes to nitrogen dioxide, no2, in a first-order process. if k = 1.5 x 103 s-1 at 5 ºc and k = 4.0 x 103 s-1 at 25 ºc, what is the activation energy for the decomposition?

The activation energy for the decomposition = 33813.28 J/mol

Explanation:

Using the expression,

Wherem  

is the activation energy

R is Gas constant having value = 8.314 J / K mol  

Thus, given that, = ?

The conversion of T( °C) to T(K) is shown below:

T(K) = T( °C) + 273.15  

So,  

T = (5 + 273.15) K = 278.15 K  

T = (25 + 273.15) K = 298.15 K  

So,

The activation energy for the decomposition = 33813.28 J/mol

the transfer of heat by electromagnetic radiation is called thermal radiation . it is usually carried out by electromagnetic waves in an energy range just below the visible spectrum, which is the infrared range.

so the answer would be radiation.

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