From the thermochemical reactions- C -1 - 2 O 2- CO - - H -110-5 kJCO -1 - 2 O 2- CO 2 - - H -283-2 kJThe heat of reaction C - O 2- CO 2 is-A- -393-7 kJB- -393-7 kJC- -172-7 kJD- -172-7 kJ

The correct option is B 393.7 kJ ...

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Introduction

From the ther...

Question

From the thermochemical reactions,

C + 1/2O₂ → CO; ∆H = -110.5 kJ

CO + 1/2O₂→ CO₂; ∆H = -283.2 kJ

The heat of reaction C + O₂ → CO₂ is:

+393.7 kJ

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+172.7 kJ

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-393.7 kJ

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-172.7 kJ

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C

+ \frac{1}{2} O_{2} \to C O; Δ H = - 110.5

C O + \frac{1}{2} O_{2} \to C O_{2}; Δ H = - 283.2

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

From the thermo chemical reactions,

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

$C O + \frac{1}{2} O_{2} \to C O_{2}; Δ H = - 283.2 K J .$

$Δ H$ for the reaction, $C_{(g r a p h i t e)} + O_{2} \to C O_{2}$ is:

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

C O + \frac{1}{2} O_{2} \to {C O}_{2}; Δ H = - 283.2 k J

C_{(g r a p h i t e)} + O_{2} \to {C O}_{2}

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 = ?

C + O_{2} \to C O_{2}; Δ H = - 94 K c a l;

C O + \frac{1}{2} O_{2} \to C O_{2}; Δ H = - 67.7 K c a l

C O

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