Give $\Delta$ H_r Values for Each of the Following Reactions from the from the Information

question 4

Essay

Give $\Delta$ H_r values for each of the following reactions from the information below.
$\Delta$ H_f ^$\omicron$ (HCl(g))= -92.31 kJ.mol^-1
H-Cl bond enthalpy = +431 kJ.mol^-1
O-H bond enthalpy = +463 kJ.mol^-1
$\Delta$ H_f ^$\omicron$ (H₂O(g))= -241.8 kJ.mol^-1
(a)2H(g)+ O(g) $\rightarrow$ H₂O(g)
(b)H₂(g)+ Cl₂(g) $\rightarrow$ 2HCl(g)
(c)H(g)+ Cl(g) $\rightarrow$ HCl(g)

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Definitions:

Psoas Major

A large skeletal muscle that runs from the lumbar region of the vertebral column to the femur and is involved in flexing the hip joint and bending the spine.

Iliopsoas

The iliopsoas is a major muscle group consisting of the iliacus and psoas major muscles, important for flexing the hip.

Hamstring Group

A group of three muscles at the back of the thigh that are involved in bending the knee and extending the hip.

Ischial Tuberosity

The protrusion of the ischium, one of the bones that make up the pelvis, which bears the body's weight when sitting.