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Rate equation for the reaction ltbr 2SO(...

Rate equation for the reaction ltbr `2SO_(2)(g)+O_(2)(g) overset(Pt)to2SO_(3)(g)` is
`r=k[SO_(2)][SO_(3)]^(-1//2)`. On increasing the conc. Of `SO_(3),` the rate of the reaction, would

A

increases

B

decreases

C

become twice

D

not affected

Text Solution

Verified by Experts

The correct Answer is:
B
Given, `r=k[SO_(2)][SO_(3)]^(-1//2)`
the negative power of concentration of `SO_(3)` indicates that on increasing the concentration of `SO_(3)`, the rate of reaction decreases.
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Knowledge Check

  • For the reaction 2SO_(2)(g)+O_(2)(g)to2SO_(3)(g) the entropy-

    A
    increases
    B
    decreases
    C
    remains unchanged
    D
    change cannot be predicted

  • If the rate of reaction, 2SO_(2)(g)+O_(2)(g)overset(Pt)rarr2SO_(3)(g) is given by: Rate =K([SO_(2)])/([SO_(3)]^(1//2)) which statements are correct?

    A
    The overall order of reaction is `-(1)/(2)`
    B
    the overall order of reaction is `+(1)/(2)`
    C
    The reaction slows down as the product `SO_(3)` is build up
    D
    The rate of reactions does not depend upon concentraion of `SO_(3)` formed

  • If the rate of reaction, 2SO_2(g)+O_2(g)overset(Pt)to2SO_3(g) is given by : Rate= K([SO_2])/([SO_3]^(1//2)) which statement are correct :

    A
    The overall order of reaction is `-1//2`
    B
    The overall order of reaction is `+1//2`
    C
    The reaction slows down as the product `SO_3` is build up
    D
    The rate of reaction does not depend upon concentration of `SO_3` formed

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