1.

The rate of reaction 2NO + Cl_(2) to 2NOCl is doubled when the concentration of Cl_(2) is doubled and becomes eight times when the concentration of both NO and Cl_(2) are doubled. Predict the order of reaction.

Answer»


Solution :Rate ( r) = `K[NO]^(x)[Cl_(2)]^(y)`…………..(i)
Rate (2r)`= k[NO]^(x)[2Cl_(2)]^(y)`………..(II)
Rate (8r) = `k[2NO]^(x)[2Cl_(2)]^(y)`…………(iii)
`(8r)/(2r) = (k[2NO]^(x)[2Cl_(2)]^(y))/(k[NO]^(x)[2Cl_(2)]^(y))`
`4= [2]^(x) or x=2`
`(2r)/(r)=(k[NO]^(x)[2Cl_(2)]^(y))/(k[NO]^(x)[Cl_(2)]^(y))`
`2= [2]^(y)` or y=1
Order of REACTION= 2+1=3.


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