Question

$a\cdot x$ mole of reactants are decomposed out of ${}^{\prime }{a}^{\prime }$ mole taken, the degree of dissociation of reactant is $x$.
If true enter 1, if false enter 0.

Answer 1

$a\cdot x$ mole of reactants are decomposed out of ${}^{\prime }{a}^{\prime }$ mole taken, the degree of dissociation of reactant is $x$.
The degree of dissociation $x$ represents the fraction of number of moles of reactants decomposed. If 1 mol is present initially, $x$ moles will be decomposed.

Degree of dissociation $=\frac{\text{Total number of moles decomposed}}{\text{Number of moles present initially}}=\frac{a\cdot x}{a}=x$.