The decomposition reaction 2 NOCl → 2 NO + Cl_2 has a rate law that is second order with respect to [NOCl], where k = 3.2 M^{-1}s^{-1} at a certain temperature. If the initial concentration of NOCl is 0.076 M, how many seconds will it take for [NOCl] to decrease to 0.042 M at this temperature? Do not enter units with your numerical answer.

It will take 3.3 s for [NOCl] to decrease to 0.042 M.

Explanation:

Integrated rate law for this second order reaction-

where, [NOCl] is concentration of NOCl after "t" time, is initial concentration of NOCl and k is rate constant.

Here, = 0.076 M, k = 3.2 and [NOCl] = 0.042 M

So,

or, t = 3.3 s

So, it will take 3.3 s for [NOCl] to decrease to 0.042 M.

conduction is the transfer of thermal energy (heat in transfer) due to collisions between the molecules in the object. collisions between adjacent atoms and molecules transfer kinetic energy from the warmer to the cooler object. the objects must be in physical contact.

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