Question
Fri January 25, 2013 By:
 

Whwn NH3 is heated strongly in presence of O2,the rate of disappearance of NH3 is found to be 2.9/100 mol/lt/sec during the measured time interval.Calculate the rate of appearence of NO and H20 respectively. (4NH3+5O2=4NO+6H20)

Expert Reply
Tue April 16, 2013

Intantaneous rate 1 d[NH3] 1d[O2] 1d[NO] 1d[H2O]

= - --------- = - --------=--------------=----------

4 dt 5dt 4dt 6 dt

Rate of appearence of NO = 2.9 x 10-2 mol lit-1 sec-1

Rate of appearence of H2O = 6/4 x 2.9 x 10-2 mol lit-1mol-1

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