Given that Zn - 1-2 O2 - ZnO -H- - 84000 cal - 1 Hg-1-2 O2 - HgO -H - 21700 cal - 2The heat of reaction - H for- Zn - HgO - ZnO - Hg is

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Hess' Law

Given that Z...

Question

Given that
$Z n + \frac{1}{2} O_{2} \to Z n O Δ H = + 84000 c a l$ ........... 1
$H g + \frac{1}{2} O_{2} \to H g O Δ H = + 21700 c a l$ ........... 2

The heat of reaction $(Δ H)$ for,

$Z n + H g O \to Z n O + H g$ is

105700 cal

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62300 cal

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-105700 cal

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-62300 cal

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Solution

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Similar questions

Given that,

$Z n + \frac{1}{2} O_{2} \to Z n O + 35.25 K J$

$H g O \to H g + \frac{1}{2} O_{2} - 9.11 K J$

The heat of the reaction $Z n + H g O \to Z n O + H g$ is

Z n + 1 / 2 O_{2} \to Z n O + 35.25 k J . H g O \to H g + 1 / 2 O_{2} + 9.11 k J .

Z n + H g O \to Z n O + H g

Zn is the oxidant in the following reaction

$Z n (s) + \frac{1}{2} O_{2} ⟶ Z n O (s)$

$K_{c}$ for the reaction, $F e^{2 +} + Z n \to Z n^{2 +} + F e$ is $10^{23}$ , The standard free energy change is

C (g r a p h i t e) + \frac{1}{2} O_{2} \to C O Δ H_{1} = - 110.5 k J / m o l

C O + \frac{1}{2} O_{2} \to C O_{2} Δ H = - 283.2 k J / m o l

k J / m o l

C (g r a p h i t e) + O_{2} \to C O_{2} Δ H = ?

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