From the rate expression for the following reactions determines the order of reaction and the dimensions of the rate constant. a) `3NO(g) to N_(2)O(g)
From the rate expression for the following reactions determines the order of reaction and the dimensions of the rate constant.
a) `3NO(g) to N_(2)O(g) + NO_(2)(g)` , Rate `=k[NO]^(2)`
b) `H_(2)O_(2)(aq) + 3I^(-)(aq) + 2H^(+)(aq) to 2H_(2)O(l) + I_(3)^(-)`, Rate =`[H_(2)O_(2)][I^(-)]`
c) `CH_(3)CHO(g) to CH_(4)(g) + CO(g)` : Rate = `k[CH_(3)CHO]^(3//2)`
d) `CHCl_(3)(g) to Cl_(4)(g) + HCl(g)` : Rate = `k[CHCl_(3)][Cl_(2)]^(1//2)`
e) `C_(2)H_(5)Cl(g) to C_(2)H_(4)(g) + HCl(g)`, Rate =`k[C_(2)H_(5)Cl]`
1 Answers
a) Order of reaction = 2
Dimension of rate constant (k) = `[molL^(-1)]^(1-n)s^(-1)=[molL^(-1)]^(1-2)s^(-1)= mol^(-1)Ls^(-1)`
b) Order or reaction `= 1+1=2`
Dimension of rate consant (k) = same as in (a)
c) Order of reaction = `3//2`
Dimension of rate constant (k) = `[molL^(-1)]^(1-n)s^(-1)= [mol L^(-1)]^(1-3//2)s^(-1) = mol^(-1//2)L^(1//2)s^(-1)`
d) Order of reaction `= 1+1//2 = 3//2`
Dimension of rate constant(k) = Same as in (c)
e) Order of reaction = 1
Dimension of rate constant (k) =`[molL^(-1)]^(1-n)s^(-1) = [molL^(-1)](1-1)s^(-1)=s^(-1)`