Question

Ammonium carbamate when heated to `200^(@) C ` gives a mixture of `NH_(3) and CO_(2)` vapours with a density of `16*0` . What is the degree of disociation of ammonium carbamate ?
A. `3//2`
B. `1//2`
C. 2
D. 1

Answer 1

Correct Answer - D
`{: (,NH_(2)COONH_(4),to,2NH_(3),+,CO_(2)), ("Intial" ,1"mole",,,,), ("After disso.",1-alpha,,2alpha,,alpha ),(,,,,,"Total"=1+2 alpha):}`
Theoretical density `(D) propto 1/V `
Observed density ` (d) propto 1/((1+2alpha)V)`
` :. D/d = 1+ 2 alpha `
or ` alpha = 1/2 ((D-d)/d) = 1/2 ((48-16*0)/16*0) = 1*0 `