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For the reaction N (2) O (4) (g) hArr 2N...

For the reaction `N _(2) O _(4) (g) hArr 2NO _(2) (g), `the value of `K _(p)` is `1.7 xx10^(3) at 500 K and 1.7xx10^(4) at 600 K.` Which of the following is/are correct?

A

The proportions of `NO_(2)` in the equilibrium mixture is increased by decrease in pressure.

B

The standard enthalpy change for the forward reaction is negative.

C

Units of `K_(p)` are `"atm"^(-1)`.

D

At 500 K the degree of dissociation of `N_(2)O_(4)` decreases by 50% by increasing the pressure by 100%.

Text Solution

Verified by Experts

The correct Answer is:
A
`Delta n = 2-1 = 1`
That is, with the decreases of pressure reaction shifts towards right, i.e., proportions of `NO_(2)` increases.
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