\(\Delta S = nR\,\ln {\kern 1pt} \left( {\frac{{{v_f}}}{{{v_i}}}} \right) \geqslant 0\) \(\Delta S\) increases.
|
લિસ્ટ $I$ (સમીકરણો) |
લિસ્ટ $II$ (પ્રક્રમનો પ્રકાર) |
| $A. \,\,K_p > Q$ | $(i)$ બિન સ્વયંભૂ |
| $B.\,\,\Delta G^o < RT ln Q$ | $(ii)$ સંતુલન |
| $C.\,\,K_p = Q$ | $(iii)$ સ્વયંભૂ અને ઉષ્માશોષક |
| $D.\,\,T>\frac{{\Delta H}}{{\Delta S}}$ | $(iv)$ સ્વયંભૂ |
$2 \mathrm{Fe}_{(\mathrm{s})}+\frac{3}{2} \mathrm{O}_{2(\mathrm{~g})} \rightarrow \mathrm{Fe}_2 \mathrm{O}_{3(\mathrm{~s})}, \Delta \mathrm{H}^{\mathrm{o}}=-822 \mathrm{~kJ} / \mathrm{mol}$
$\mathrm{C}_{(\mathrm{s})}+\frac{1}{2} \mathrm{O}_{2(\mathrm{~g})} \rightarrow \mathrm{CO}_{(\mathrm{g})}, \Delta \mathrm{H}^{\mathrm{o}}=-110 \mathrm{~kJ} / \mathrm{mol}$
$3\mathrm{C}_{(\mathrm{s})}+\mathrm{Fe}_2 \mathrm{O}_{3(\mathrm{~s})} \rightarrow 2 \mathrm{Fe}_{(\mathrm{s})}+3 \mathrm{CO}_{(\mathrm{g})}$ આપેલા પ્ર્ક્રિયા માટે એન્થાલ્પી ફેરફાર__ _ _$J/mol$ છે.
આપેલ : $\Delta H ^{\circ}=-54.07\,kJ\,mol ^{-1}$
$\Delta S ^{\circ}=10\,J\,K ^{-1}\,mol ^{-1}$
$(2.303 \times 8.314 \times 298=5705$ લો.)
$\Delta_{f} {H}^{\ominus}$ ${KCl}=-436.7 \,{~kJ}\, {~mol}^{-1}$
$\Delta_{\text {sub }} {H}^{\ominus}$ ${K}=89.2 \,{~kJ}\, {~mol}^{-1}$
$\Delta_{\text {ionization }} \,{H}^{-}$ ${K}=419.0\, {~kJ}\, {~mol}^{-1}$
$\Delta_{\text {electron gain }} {H}^{\ominus}$ ${Cl}_{(\text {e) }}=-348.6 \,{~kJ} \,{~mol}^{-1}$
$\Delta_{{bond}} {H}^{-}$ ${Cl}_{2}=243.0 \,{~kJ} \,{~mol}^{-1}$
${KCl}$ની લેટિસ એન્થાલ્પીની તીવ્રતા $.....$ ${kJ} {mol}^{-1}$ છે.