For which of the following equation will - H be equal to - U-H-2 -g-I-2-g- 2HI-g-H-2-g-1-2O-2 -g- - H-2O -l-2NO-2-g- N-2O-4-g-3NO-2 -g-O-2-g- 2N-2O-5 -g-

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Le Chatelier's Principle for Del N Equals to 0

For which of ...

Question

For which of the following equation will $Δ H$ be equal to $Δ U$ .

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

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$H_{2} (g) + I_{2} (g) \to 2 H I (g)$

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$2 N O_{2} (g) \to N_{2} O_{4} (g)$

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$3 N O_{2} (g) + O_{2} (g) \to 2 N_{2} O_{5} (g)$

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Solution

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Δ H \neq Δ U

Δ H

k J

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

H_{2} O (g) + C (g) \to C O (g) + H_{2} (g)

Δ H = + 131 k J

C O (g) + \frac{1}{2} O_{2} (g) \to {C O}_{2} (g)

Δ H = - 282 k J

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

Δ H = - 242 k J

Δ H

Δ U

H_{2} (g) + \frac{1}{2} O_{2} (g) ⟶ 2 H_{2} O (l); Δ H = - 86 k J

2 H_{2} (g) + O_{2} (g) ⟶ 2 H_{2} O (l) . . . . . . . . . k J (\pm ?)

H_{2} (g) + \frac{1}{2} O_{2} (g) ⟶ 2 H_{2} O (l); Δ H = - 286 k J

2 H_{2} (g) + O_{2} (g) ⟶ 2 H_{2} O (l) . . . . . . . . . k J (\pm ?)

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