Determine - U o at 300K for the following reaction using the listed enthalpies of reaction- 4COg-8 H 2 g- 3 CH 4 g- CO 2 g-2 H 2 Ol Cgraphite-1-2 O 2 g- COg- - H 1 o -110-5kJ COg-1-2 O 2 g- CO 2 g- - H 2 o -282-9kJ H 2 g-1-2 O 2 g- H 2 Ol- - H 3 o -285-8kJ Cgraphite-2 H 2 g- CH 4 g- - H 4 o -74-8kJ

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Lattice Energy

Determine Δ...

Question

Determine $Δ U^{o}$ at $300 K$ for the following reaction using the listed enthalpies of reaction:

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

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

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

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

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

653.5 k J

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- 686.2 k J

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- 747.4 k J

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None of these

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Determine $Δ U^{\circ}$ at 300 K for the following reaction using the listed enthalpies of reaction.

$4 C O (g) + 8 H_{2} (g) \to 3 C H_{4} (g) + C O_{2} (g) + 2 H_{2} O (l)$

$C (g r a p h i t e) + \frac{1}{2} O_{2} (g) \to C O (g); Δ {H_{1}}^{\circ} = - 110.5 k J$

$C O (g) + \frac{1}{2} O_{2} (g) \to C O_{2} (g); Δ {H_{2}}^{\circ} = - 282.9 k J$

$H_{2} (g) + \frac{1}{2} O_{2} (g) \to H_{2} O (l); Δ H_{3}^{0} = - 285.8 k J$

$C (g r a p h i t e) + 2 H_{2} (g) \to C H_{4} (g); Δ H_{4}^{0} = - 74.8 k J$

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_{(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 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 H_{3} O H (l)

C H_{3} O H (l) + \frac{3}{2} O_{2} (g) \to C O_{2} (g) + 2 H_{2} O (l)

Δ H^{o} = - 726

m o l^{- 1}

+ O_{2} (g) \to C O_{2} (g);

Δ_{c} H^{0} = - 393

m o l^{- 1}

H_{2} (g) + \frac{1}{2} O_{2} (g) \to H_{2} O (l);

Δ_{t} H^{o} = - 286

m o l^{- 1}

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