Consider the reacton X+Y --> Z From the following data, obtained at 360 K, a) de

Question

Consider the reacton X+Y --> Z From the following data, obtained at 360 K, a) determine the order of the reaction , and b) determine the initial rate of disappearance of X when theconcentration of X is 0.30 M and that of Y is 0.40 M. Initial rate of disappearance of x (M/s) [x] (M) [Y] (M) 0.053 0.10 0.50 0.127 0.20 0.30 1.02 0.40 0.60 0.254 0.20 0.60 0.509 0.40 0.30

Consider the reacton X+Y --> Z From the following data, obtained at 360 K, a) determine the order of the reaction , and b) determine the initial rate of disappearance of X when theconcentration of X is 0.30 M and that of Y is 0.40 M. Initial rate of disappearance of x (M/s) [x] (M) [Y] (M) 0.053 0.10 0.50 0.127 0.20 0.30 1.02 0.40 0.60 0.254 0.20 0.60 0.509 0.40 0.30

Initial rate of disappearance of x (M/s) [x] (M) [Y] (M) 0.053 0.10 0.50 0.127 0.20 0.30 1.02 0.40 0.60 0.254 0.20 0.60 0.509 0.40 0.30

Explanation / Answer

rate= k[X]^x*[Y]^y

so we get

1.02/0.254=(0.4/0.2)^2

so x=2

also,

0.127/0.254=(0.3/0.6)^y

so,

y=1

so rate=k*[X]^2*[Y]

so order is 2+1=3

b)0.053/x=(0.1/0.3)^2*(0.5/0.4)

or x=0.3816 M/s

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