Question

the vapour density of a gaseous compound ab is 80 but when heated to 400k its vapour density is reduced to 50 the percentage dissociation of ab into a and b at 400k is?

Answer 1

Answer:

reduced to 50. The % dissociation of AB into A(g) + B(g) at 400 K is. A) 25%

Answer 2

Answer:

60%

Explanation:

let initially be x moles

then it dissociated into xß and products be ß and ß

then

total moles by intial moles (concentration)= vapour density by various density at equilibrium

that is

x(1-ß) / x = 80 / 50

solving for x, x = 0.6 = 60%