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Q.

For N2+O2→2NO initially N2&O2 are at pressures 500mm & 700 mm at t = 0. If the pressure of N2 is 480 mm at t = 20 min average rate of reaction is (in mm - min–1) 

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a

2

b

1

c

4

d

5

answer is B.

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Detailed Solution

detailed_solution_thumbnail

 N2500+O2700→2NO

change in pressure = 500 - 480 =20

Average rate = change in pressuretime 

Average rate = 2020=1

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