Determine $\Delta$ H_f ^$\omicron$ (HCl(g)) from the Following Data $\Delta$ H_f ^$\omicron$

question 183

Multiple Choice

Determine $\Delta$ H_f ^$\omicron$ (HCl(g) ) from the following data.
H-Cl bond enthalpy = +431 kJ.mol^-1
$\Delta$ H_f ^{$\omicron$ (}H(g) ) = +217.9 kJ.mol^-1
$\Delta$ H_f ^$\omicron$ (Cl(g) ) = +121.4 kJ.mol^-1

• A) +92 kJ.mol^-1
• B) -261 kJ.mol^-1
• C)-431 kJ.mol^-1
• D) +431 kJ.mol^-1
• E) -92 kJ.mol^-1

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