Question

What would be the value of $△n_g$ for the reaction?

$N{H}_{4}C{l}_{\left(s\right)}\rightleftharpoons N{H}_{3\left(g\right)}+HC{l}_{\left(g\right)}$

• A. $1$
• B. $0.5$
• C. $1.5$
• D. $2$

Answer 1

Answer: (D)

$2$

The given reaction is ${NH}_{4}Cl\left(s\right)\rightleftharpoons {NH}_3\left(g\right)+HCl\left(g\right)$

$△n_g=$ No. of moles of gaseous products $-$ No. of moles of gaseous reactants

$=2-0=2$

Hence, the correct answer is option $\text{D}$.