Heat of reaction for the reaction is- PCl5g-H2Og- POCl3g-2HClgGiven that- Pwhite - 3-2Cl2g -1-2O2g- POCl3- - H-135-5 kcal H2 g - Cl2 g - -2HClg- - H-44-1 kcal Pw-5-2Cl2g- PCl5g- - H-89-6 kcal H2g-1-2O2g- H2Og- - H-57-8 kcal

The correct option is A 32.2 kcal P_white + 32 Cl_2(g) +12O_2(g)⟶ POCl_3; #160; Δ H_1= 135.5 kcal #160; H_2( g ) + Cl_2( g )⟶ +2HCl(g ...

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Hess' Law

Heat of react...

Question

Heat of reaction for the reaction is:

$P C l_{5} (g) + H_{2} O (g) ⟶ P O C l_{3} (g) + 2 H C l (g)$

Given that,
$P_{w h i t e} + (3 / 2) C l_{2} (g) + \frac{1}{2} O_{2} (g) ⟶ P O C l_{3}; Δ H = - 135.5 k c a l$

$H_{2} (g) + C l_{2} (g) ⟶ + 2 H C l (g); Δ H = - 44.1 k c a l$
$P (w) + (5 / 2) C l_{2} (g) ⟶ P C l_{5} (g); Δ H = - 89.6 k c a l$

$H_{2} (g) + \frac{1}{2} O_{2} (g) ⟶ H_{2} O (g); Δ H = - 57.8 k c a l$

- 32.2 k c a l

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- 52.5 k c a l

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- 45.2 k c a l

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None of these

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Solution

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Similar questions

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