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The values of K(p)//K(c) for the followi...

The values of `K_(p)//K_(c)` for the following reactions at 300 K are, respectively :
(At 300 K, RT = 24.62 d`m^(3)` atm `mol^(-1)`)
`N_(2)(g)+O_(2)(g)hArr 2 NO(g)`
`N_(2)O_(4)(g)hArr2 NO_(2)(g)`

A

`1,4.1 xx 10^(-2) dm^(-3)atm^(-1)mol, 606 dm^(6)atm^(2)mol^(-2)`

B

`1,24.62" dm atm "mol^(-1), 606 dm^(6)atm^(2)mol^(-2)`

C

`24.62 dm^(3)atm mol^(-1), 606 dm^(6)atm^(2)mol^(-2)`

D

`1,24.62 dm^(3)atm mol^(-1), 1.65 xx 10^(-3) dm^(6)atm^(2)mol^(2)`

Text Solution

Verified by Experts

The correct Answer is:
D
`K_(p) = K_(c)(RT)^(Deltang)`
`K_(p)/K_(c) = (RT)^(Deltang)`
For reaction `N_(2)(g) + O_(2)(g) rarr 2NO(g)`
`Deltang = 0 hence Kp//Kc = 1`
For reaction `N_(2)O_(4)(g) rarr 2NO_(2)(g)`
`Deltang = 1` hence `Kp//Kc = (24.62)^(1) dm^(3) atm mol^(-1)`
For reaction `N_(2)(g) + 3H_(2)(g) rarr 2NH_(3)(g)`
`Deltang = -2 hence Kp//Kc = (24.62)^(-2) = 1.65 xx 10^(-3) dm^(-6)atm^(-2)mol^(2)`
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