Determine - U- at 300 K for the following reaction using the listed enthalpies of reaction- 4COg - 8H2g - 3CH4g - CO2g - 2H2Ol Cgraphite - 1-2O2g - COg-H1- - - 110-5kJ COg - 1-2O2g - CO2g-H2- - - 282-9kJ H2g - 1-2O2g -H2Ol- H30 - - 285-8kJ Cgraphite - 2H2g - CH4g- H40 - - 74-8kJ

The correct option is D None of these Δ H=Δ U+Δ n_g RT Reaction #160; : #160; 4CO_(g)+ 8 H_2(g)→ 3CH_4(g)+CO_2(g)+2H_2o_(l) Δ_r H^∘=3 Δ_f H^∘ ...

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Stoichiometry

Determine Δ...

Question

Determine $Δ U^{\circ}$ at 300 K for the following reaction using the listed enthalpies of reaction.
$4 C O (g) + 8 H_{2} (g) \to 3 C H_{4} (g) + C O_{2} (g) + 2 H_{2} O (l)$
$C (g r a p h i t e) + \frac{1}{2} O_{2} (g) \to C O (g); Δ {H_{1}}^{\circ} = - 110.5 k J$
$C O (g) + \frac{1}{2} O_{2} (g) \to C O_{2} (g); Δ {H_{2}}^{\circ} = - 282.9 k J$
$H_{2} (g) + \frac{1}{2} O_{2} (g) \to H_{2} O (l); Δ H_{3}^{0} = - 285.8 k J$
$C (g r a p h i t e) + 2 H_{2} (g) \to C H_{4} (g); Δ H_{4}^{0} = - 74.8 k J$

653.5 kJ

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686.2 kJ

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747.4 kJ

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None of these

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Δ U^{o}

300 K

4 C O (g) + 8 H_{2} (g) ⟶ 3 {C H}_{4} (g) + {C O}_{2} (g) + 2 H_{2} O (l)

C_{(g r a p h i t e)} + 1 / 2 O_{2} (g) ⟶ C O (g); Δ {H_{1}}^{o} = - 110.5 k J

C O (g) + 1 / 2 O_{2} (g) ⟶ {C O}_{2} (g); Δ {H_{2}}^{o} = - 282.9 k J

H_{2} (g) + 1 / 2 O_{2} (g) ⟶ H_{2} O (l); Δ {H_{3}}^{o} = - 285.8 k J

C_{(g r a p h i t e)} + 2 H_{2} (g) ⟶ {C H}_{4} (g); Δ {H_{4}}^{o} = - 74.8 k J

C_{(g r a p h i t e} + O_{2} (g) \to C O_{2} (g); Δ_{r} H^{o} = - 393.5 k J m o l^{- 1}

H_{2} (g) + \frac{1}{2} O_{2} (g) \to H_{2} O (l); Δ_{r} H^{o} = - 285.8 k J m o l^{- 1}

C O_{2} (g) + 2 H_{2} O (l) \to C H_{4} (g) + 2 O_{2} (g); Δ^{r} H 6 o = + 890.3 k J m o l^{- 1}

D e l t a_{r} H^{o}

298 K

C_{(g r a p h i t e)} + 2 H_{2} (g) \to C H_{4} (g)

C_{(g r a p h i t e)} + O_{2} (g) \to C O_{2} (g); Δ_{r} H^{o} = - 393.5 k J m o l^{- 1}

H_{2} (g) + \frac{1}{2} O_{2} (g) \to H_{2} O (l); Δ_{r} H^{o} = - 285.8 k J m o l^{- 1}

C O_{2} (g) + 2 H_{2} O (l) \to C H_{4} (g) + 2 O_{2} (g); Δ_{r} H^{o} = + 890.3 k J m o l^{- 1}

Δ_{r} H^{o}

298 K

C_{(g r a p h i t e)} + 2 H_{2} (g) \to C H_{4} (g)

C H_{3} O H (I)

C H_{3} O H (I) + \frac{3}{2} O_{2} (g) \to C O_{2} (g) + 2 H_{2} O (l); △_{r} H^{θ} = - 726 k J m p l^{- 1}

C_{(g r a p h i t e)} + O_{2} (g) \to C O_{2} (g); △_{c} H^{θ} = - 393 k J m o l^{- 1}

H_{2} (g) + \frac{1}{2} O_{2} (g) \to H_{2} O (l); △_{f} H^{θ} = - 286 k J m o l^{- 1}

C (s) + \frac{1}{2} O_{2} (g) \to C O (g); Δ H_{1} = a

C O (g) + \frac{1}{2} O_{2} (g) \to C O_{2} (g); Δ H_{2} = b

C (s) + C O_{2} (g) \to 2 C O (g); Δ H_{3} = c

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