अभिक्रिया के अनुसार `Br_(2(g))` के कणन पर विचार कीजिए:
`Br_2 (g)

Options

A. `2.37 xx 10^(-3)`
B. `3.20 xx 10^(-4)`
C. `4.30 xx 10^(-5)`
D. `3.60 xx 10^(-2)`

Answer

A

Explanation

`Br_2(g) `DeltaS_("अभिक्रिया") = 2 xx 175 – 244.4 `
`= 105.6 JK^(-1)`
`DeltaH_("अभिक्रिया")^(@) = 82 KJ m^(-1)`
`DeltaG_("अभिक्रिया")^@ = DeltaH_("अभिक्रिया")^(@) - TDeltaS^@ = 82000`
` - 500 xx 105.6`
` = 29.2 xx 10^@J = -RT In K_p`
`ln K_P = (-29700)/(8.314 xx 500) = -7.02`
`therefore K_P = 9 xx 10^(-4)`
`K_P = (4 alpha^2P)/(1 - alpha^2)`
जैसा कि `alpha lt lt 1 therefore 1 - alpha^2 = 1`
`therefore K_P = 4 xx alpha^2 P`
`because P = 40`
`therefore 9 xx 10^(-4) = 4 . alpha^2 . 40`
`therefore alpha^2 = 9/160 xx 10^(-4)`
`= 9/16 xx 10^(-5)`
`2.37 xx 10^(-3)`