MCQ
Energy required to dissociate $ 4\,gm$ of gaseous hydrogen into free gaseous atoms is $208\, kcal $ at ${25\,^o}C$. The bond energy of $H - H$ bond will be
- ✓$104\, kcal$
- B$10.4 \,kcal$
- C$1040\, kcal$
- D$104\, cal$
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$Ba{\left( {{N_3}} \right)_2}\xrightarrow{\Delta }Ba + {N_2} \uparrow $
$C_2H_4(g) + H_2(g) \to C_2H_6(g)$
| Bond | Bond energy $(kJ)$ |
| $C-H$ | $413$ |
| $C-C$ | $348$ |
| $C=C$ | $610$ |
| $H-H$ | $436$ |
$A{B_3}(g) \rightleftharpoons A{B_2}(g) + \frac{1}{2}{B_2}(g)$ , when the initial pressure of $AB_3$ is $800\,torr$ and the total pressure developed at equilibrium is $900\,torr$ . What percentage of $AB_3(g)$ is dissociated?