$C_{(s)} + O_{2(g)} \rightarrow CO_{2(g)} \dots \dots(I) \quad \Delta H = -393 \, kJ \, mol^{-1}$
$H_{2(g)} + \frac{1}{2} O_{2(g)} \rightarrow H_{2}O_{(l)} \dots \dots(II) \quad \Delta H = -287.3 \, kJ \, mol^{-1}$
$2CO_{2(g)} + 3H_{2}O_{(l)}$ $\rightarrow C_{2}H_{5}OH_{(l)} + 3O_{2(g)} \dots \dots(III) \quad \Delta H = 1366.8 \, kJ \, mol^{-1}$
$C_{2}H_{5}OH_{(l)}$ की मानक संभवन एन्थैल्पी ज्ञात कीजिए।

• A
  $281.1 \, kJ \, mol^{-1}$
• B
  $-562.2 \, kJ \, mol^{-1}$
• C
  $562.2 \, kJ \, mol^{-1}$
• D
  $-281.1 \, kJ \, mol^{-1}$