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If Delta(f)H^(@)(C(2)H(4)) and Delta(f)H...

If `Delta_(f)H^(@)(C_(2)H_(4))` and `Delta_(f)H^(@)(C_(2)H_(6))` are `x_(1)` and `x_(2)` kcal `"mol"^(-1)`, then heat of hydrogenation of `C_(2)H_(4)` is :

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An ideal gaseous mixture of ethane (C_(2)H_(6)) and ethene (C_(2)H_(4)) occupies 28 litre at 1atm 0^(@)C . The mixture reacts completely with 128 gm O_(2) to produce CO_(2) and H_(2)O . Mole of fraction at C_(2)H_(6) in the mixtture is-

Standard Gibb's energy of reaction (Delta_(r )G^(@)) at a certain temperature can be computed Delta_(r )G^(@)=Delta_(r)H^(@)-T.Delta_(r )S^(@) and the change in the value of Delta_(r)H^(@) and Delta_(r)S^(@) for a reaction with temperature can be computed as follows : Delta_(r )H_(T_(2))^(@)-Delta_(r )H_(T_(1))^(@)=Delta_(r )C_(p)^(@)(T_(2)-T_(1)) Delta_(r )S_(T_(2))^(@)-Delta_(r )S_(T_(1))^(@)=Delta_(r )C_(p)^(@)ln.(T_(2)/T_(1)) " "Delta_(r )G^(@)=Delta_(r)H^(@)-T.Delta_(r)S^(@) and " by "Delta_(r )G^(@)=-"RT " ln K_(eq) . Consider the following reaction : CO(g)+2H_(2)(g)iffCH_(3)OH(g) Given : Delta_(f)H^(@)(CH_(3)OH,g)=-201 " kJ"//"mol", " "Delta_(f)H^(@)(CO,g)=-114" kJ"//"mol" S^(@)(CH_(3)OH,g)=240" J"//"K-mol, "S^(@)(H_(2),g)=29" JK"^(-1)" mol"^(-1) S^(@)(CO,g)=198 " J"//"mol-K, "C_(p,m)^(@)(H_(2))=28.8 " J"//"mol-K" C_(p,m)^(@)(CO)=29.4 " J"//"mol-K, "C_(p,m)^(@)(CH_(3)OH)=44 " J"//"mol-K" and " "ln ((320)/(300))=0.06 , all data at 300 K Delta_(r )H^(@) at 300 K for the reaction is :

Standard Gibb's energy of reaction (Delta_(r )G^(@)) at a certain temperature can be computed Delta_(r )G^(@)=Delta_(r)H^(@)-T.Delta_(r )S^(@) and the change in the value of Delta_(r)H^(@) and Delta_(r)S^(@) for a reaction with temperature can be computed as follows : Delta_(r )H_(T_(2))^(@)-Delta_(r )H_(T_(1))^(@)=Delta_(r )C_(p)^(@)(T_(2)-T_(1)) Delta_(r )S_(T_(2))^(@)-Delta_(r )S_(T_(1))^(@)=Delta_(r )C_(p)^(@)ln.(T_(2)/T_(1)) " "Delta_(r )G^(@)=Delta_(r)H^(@)-T.Delta_(r)S^(@) and " by "Delta_(r )G^(@)=-"RT " ln K_(eq) . Consider the following reaction : CO(g)+2H_(2)(g)iffCH_(3)OH(g) Given : Delta_(f)H^(@)(CH_(3)OH,g)=-201 " kJ"//"mol", " "Delta_(f)H^(@)(CO,g)=-114" kJ"//"mol" S^(@)(CH_(3)OH,g)=240" J"//"K-mol, "S^(@)(H_(2),g)=29" JK"^(-1)" mol"^(-1) S^(@)(CO,g)=198 " J"//"mol-K, "C_(p,m)^(@)(H_(2))=28.8 " J"//"mol-K" C_(p,m)^(@)(CO)=29.4 " J"//"mol-K, "C_(p,m)^(@)(CH_(3)OH)=44 " J"//"mol-K" and " "ln ((320)/(300))=0.06 , all data at 300 K Delta_(r )G^(@) at 320 K is :

For the reaction C_(2)H_(6)(g)hArrC_(2)H_(4)(g)+H_(2)(g) K_(p) is 5xx10^(-2) atm. Calculate the mole per cent of C_(2)H_(6)(g) at equilibruium if pure C_(2)H_(6) at 1 atm is passed over a suitable catalyt at 900 K :

The fat, C_(57)H_(104)O_(6)(s) , is metabolized via the following reaction. Given the enthalpies of formation, calculate the energy (kJ) liberated when 1.0 g of this fat reacts. C_(57)H_(104)O_(6)(s)+80 O_(2)(g)rarr57CO_(2)(g)=-52 H_(2)O(l) Delta_(f)H^(@)(C_(57)H_(104)O_(6),s)=-70870" kJ"//"mol, "Delta_(f)H^(@)(H_(2)O,l)=-285.8 " kJ"//"mol" , Delta_(f)H^(@)(CO_(2),g)=-393.5 " kJ"//"mol"

NARENDRA AWASTHI-THERMODYNAMICS-Exercise
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  7. 2 mole of an ideal gas at 27^(@)C expands isothermally and reversibly ...

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  8. A diatomic ideal gas is expanded according to PV^(3) = constant, under...

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  9. A heat engine operating between 227^(@)C and 77^(@)C absorbs 10 kcal o...

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  10. Write the structural formulae for : 2-methylpropan-2-ol

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  11. Molar heat capacities at constant pressure for A, B and C are 3, 1.5 a...

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  12. Standard molar enthalpy of combustion of glucose is -2880 kJ. If only ...

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  13. If Delta(f)H^(@)(C(2)H(4)) and Delta(f)H^(@)(C(2)H(6)) are x(1) and x...

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  14. The integral enthalpies of solution of anhydrous CuSO(4) (s) and hydra...

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  15. If enthalpy of neutralisation of HCl by NaOH is -57 kJ " mol"^(-1) and...

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  16. If enthalpy of neutralisation of HCl by NaOH is -57 kJ " mol"^(-1) and...

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  17. x g sample of NH(4)NO(3) is decomposed in a Bomb calorimeter. The temp...

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  18. A heat engine operating between 227^(@)C and 77^(@)C absorbs 10 kcal o...

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  19. Calculate work done in chemical reaction (in kcal) A(s)+3B(g)rarrC(l...

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  20. Infigure, if AB II DC,find the value of x . .

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