Predict - H- U or - H- U-a- Cgraphite - O2g- CO2gb- PCl5g- PCl3g - Cl2g

The correct option is A a. Δ H = Δ U ; #160; b. Δ H gt;Δ U We know, Δ H= Δ U + Δ n_gRT a. Δ H = Δ U because Δ n_g = 0 . #160; ...

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Predict Δ H...

Question

Predict $Δ H > Δ U$ or $Δ H < Δ U$ .
a. $C (g r a p h i t e) + O_{2} (g) ⟶ C O_{2} (g)$
b. $P C l_{5} (g) ⟶ P C l_{3} (g) + C l_{2} (g)$

Δ H = Δ U

; b.

Δ H > Δ U

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Δ H > Δ U

; b.

Δ H = Δ U

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Δ H > Δ U

; b.

Δ H < Δ U

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None of these

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Solution

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Similar questions

C (s) + O_{2} (g) ⟶ C O_{2} (g)

Δ H = Δ U + R T

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Δ H = Δ U

N H_{4} H S (s) ⟶ N H_{3} (g) + H_{2} S (g)

Δ H = Δ U - 2 R T

P C l_{5} (g) ⟶ P C l_{3} (g) + C l_{2} (g)

Δ H = Δ U + 2 R T

2 S O_{2} (g) + O_{2} (g) ⟶ 2 S O_{3} (g)

Δ H = Δ U - R T

C (s) + O_{2} (g) ⟶ C O_{2} (g)

Δ H = Δ U + R T

N_{2} (g) + 3 H_{2} (g) ⟶ 2 N H_{3} (g)

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N H_{4} H S (s) ⟶ N H_{3} (g) + H_{2} S (g)

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P C l_{5} (g) ⟶ P C l_{3} (g) + C l_{2} (g)

Δ H = Δ U + 2 R T

2 S O_{2} (g) + O_{2} (g) ⟶ 2 S O_{3} (g)

Δ H = Δ U - R T

P C l_{5} (g) \to P C l_{3} (g) + C l_{2} (g)

Δ H

Δ U

Δ H = Δ U + Δ n R T

Δ U = Δ H

2 S O_{2} (g) + O_{2} (g) \to 2 S O_{3} (g)

Δ H

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