MCQ
Which molecule is linear
- A$N{O_2}$
- B$Cl{O_2}$
- ✓$C{O_2}$
- D${H_2}S$
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$C _{2} H _{6} \rightarrow C _{2} H _{4}+ H _{2}$
the reaction enthalpy $\Delta_{ r } H =...........{ kJ\, mol ^{-1}}$.
(Round off to the Nearest Integer).
[Given : Bond enthalpies in $kJ$ $mol$ $^{-1}:C-C : 347, C = C : 611 ; C - H : 414, H - H : 436]$
Total no. of elimination products are (includes stereoisomers)
$\Delta_{f} \mathrm{H}^{\ominus}$ for $\mathrm{KCl}=-436.7 \,\mathrm{~kJ}\, \mathrm{~mol}^{-1}$
$\Delta_{\text {sub }} \mathrm{H}^{\ominus}$ for $\mathrm{K}=89.2 \,\mathrm{~kJ}\, \mathrm{~mol}^{-1}$
$\Delta_{\text {ionization }} \,\mathrm{H}^{-}$ for $\mathrm{K}=419.0\, \mathrm{~kJ}\, \mathrm{~mol}^{-1}$
$\Delta_{\text {electron gain }} \mathrm{H}^{\ominus}$ for $\mathrm{Cl}_{(\text {e) }}=-348.6 \,\mathrm{~kJ} \,\mathrm{~mol}^{-1}$
$\Delta_{\mathrm{bond}} \mathrm{H}^{-}$ for $\mathrm{Cl}_{2}=243.0 \,\mathrm{~kJ} \,\mathrm{~mol}^{-1}$
The magnitude of lattice enthalpy of $\mathrm{KCl}$ in $\mathrm{kJ} \mathrm{mol}^{-1}$ is ..... . (Nearest integer)