Question

In: Chemistry

For the reaction 2A+B à 3C, we know that the concentration of C increases from 1M...

For the reaction 2A+B à 3C, we know that the concentration of C increases from 1M to 1.6M in 30 seconds.

What is the average reaction rate (in mM/s) during this time interval?

Hint: 1mM=10-3M

Expert Solution

Answer :

Given reaction ,

2A + B ---> 3 C

Average Rate of reaction = change in concentration of product / ( stoichiometric coefficient * change in time )

=( 1/ n )( d[P] / dt )

Stoichiometric coefficient (n) of product = 3

dt = change in time = 30 second

Change in concentration of product = final concentration - initial concentration = 1.6 M - 1 M = 0.6 M

Average rate of reaction = (1/3) * ( 0.6 M / 30 s)

= 0.6 / 90 = 0.0066 M/s

Average rate of reaction = 0.0066 M/s

( 1 M = 1000 mM )

So, Average Rate of Reaction = 0.0066 * 1000 mM /s

= 6.6 mM /s

Average rate of reaction = 0.0066 M/s = 6.6 mM/s

queen_honey_blossom answered 2 years ago

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