1.

The reaction ,N_2O_5 in 2NO_2 + (1//2)O_2(g) is of first order for N_2O_5 with rate constant 6.2 xx 10^(-4)s^(-1). What is the value of rate of reaction when [N_2O_5]= 1.25 mol L^(-1) ?

Answer»

`5.15 XX 10^(-5) MOL L^(-1) s^(-1)`
`6.35 xx 10^(-3)mol L^(-1)s^(-1)`
`7.75 xx 10 ^(-4) mol L^(-1) s^(-1)`
`3.85 xx 10^(-3) mol L^(-1) s^(-1)`

SOLUTION :`r = K[N_2O_5]= 6.2 xx 10^(-4)xx 1.25 = 7.75 xx 10^(-4)M/s`


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