1.

c) For the reaction, H_(2)+I_(2)rarr 2HI, the rate of disappearance of H2 is 1xx10^(-4)Ms^(-1). What is the rate of appearance of HI.

Answer»

Solution :Rate EXPRESSION for the reaction
`H_(2)+I_(2)rarr2HI` is
`-(Delta[H_(2)])/(Deltat)=-(Delta[I_(2)])/(Deltat)=(1)/(2)([HI])/(Deltat)"…(1)"`
Given that
`-(Delta[H_(2)])/(Deltat)="Rate "=1xx10^(-4)MS^(-1)`
SUBSTITUTE in the equation (1)
Rate of appearance will be equal to rate of disappearance
`-(Delta[H_(2)])/(Deltat)=(1)/(2)(Delta[HI])/(Deltat)`
`1xx10^(-4)=(1)/(2)(Delta[HI])/(Deltat)`
`2(1xx10^(-4))=(Delta[HI])/(Deltat)="Rate "=2xx10^(-4)ms^(-1)`
Rate of appearance of `HI` is `2xx10^(-4)ms^(-1)`


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