Saved Bookmarks
| 1. |
Which of the following expressions is correct for rate of reaction given below? 5Br_((aq))^(-)+BrO_(3(aq))^(-)+6H_((aq))^(-)to3BR_(2(aq))+3H_(2)O_((i)) |
|
Answer» `(Delta[BR^(0)])/(Deltat)=5(Delta[H^(+)])/(Deltat)` `5Br_((aq))^(-)+BrO_(aq)^(-)+6H_((aq))^(+)to3Br_(2(aq))+3H_(2)O_(l)` aqueous medium is given ,so except `H_(2)O_(l)` for all SPECIES the rate is as FOLLOWS (in which coefficient is `(1)/(x)`) and with respect to reactant -ve and with respect to product the rate is +ve. Rate=`-(1)/(5)(Delta[Br^(-)])/(Delta t)=-(Delta[BrO_(3)^(-)])/(Deltat)` `-(1)/(6)([DeltaH^(+)])/(Deltat)=+(1)/(3)([DeltaBr_(2)])/(Deltat)` `therefore (Delta[Br^(-)])/(Deltat)=(5Delta[BrO_(3)^(-)])/(Deltat)` `(5)/(6)([DeltaH^(+)])/(Deltat)=-(5)/(3)([DeltaBr_(2)])/(Deltat)` `therefore ([DeltaBr^(-)])/(Deltat)=+(5)/(6)(DeltaH^(+))/(Deltat)` So, option (C )is correct. |
|