Determine $\Delta$ H_f ^$\circ$ (HCl(g))from the Following Data $\Delta$ H_f ^$\circ$ (H(g))= +217 $\Delta$ H_f ^$\circ$

question 37

Multiple Choice

Determine $\Delta$ H_f ^$\circ$ (HCl(g) ) from the following data. H-Cl bond enthalpy = +431 kJ.mol^-1
$\Delta$ H_f ^$\circ$ (H(g) ) = +217.9 kJ.mol^-1
$\Delta$ H_f ^$\circ$ (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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Definitions:

Dense Regular Connective Tissue

A type of connective tissue with collagen fibers aligned in parallel, providing strength and resistance in one direction, commonly found in tendons and ligaments.

Ligaments

Tough, fibrous connective tissue that connects bones to other bones.

Fibroblast

A type of cell that produces collagen and other fibers, playing a critical role in wound healing and tissue repair.