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What is the equilibrium expression Kc, f...

What is the equilibrium expression `K_c`, for the reaction :
`2S(s)+3O_(2)(g)hArr 3SO_3(g)`?

A

`K_c=(2[SO_3])/((2[S]+3[O_2]))`

B

`K_c=(2[SO_3])/(3[O_2])`

C

`K_c=(2[SO_3]^2)/([S]^2+[O_2]^3)`

D

`K_c=([SO_3]^2)/([O_2]^3)`

Text Solution

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The correct Answer is:
D
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Knowledge Check

  • What is the equilibrium expression for this reaction ? 2ZnS(s)+3O_2(g) hArr 2ZnO(s)+2SO_2(g)

    A
    `K=(2[SO_2])/(3[O_2])`
    B
    `K=([SO_2]^2)/([O_2]^3)`
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    `K=(2[ZnO][SO_2])/(3[ZnS][O_2])`
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  • What is the equilibrium expression for this reaction ? 2HgO(s) hArr 2Hg(l)+O_2(g)

    A
    `K=([Hg][O_2])/([HgO])`
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    `K=([Hg]^2[O_2])/([HgO]^2)`
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    `K=[Hg]^2[O_2]`
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  • Based on the equilibrium constant for the reaction below : 2SO_3(g)hArr2SO_2(g)+O_2(g) " " K=1.8xx10^(-5) What is the equilibrium constant for the reaction SO_2(g)+1/2O_2(g)hArr SO_3(g) " " K=?

    A
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