Find the Standard Enthalpy of Formation of Ethylene, C₂H₄(g), Given $\Delta$

question 74

Multiple Choice

Find the standard enthalpy of formation of ethylene, C₂H₄(g) , given the following data: heat of combustion of C₂H₄(g) = -1411 kJ/mol; \9\Delta\) H°_f[CO₂(g) ] = -393.5 kJ/mol; $\Delta$ H°_f[H₂O(l) ] = -285.8 kJ/mol.

• A)52 kJ/mol
• B)87 kJ/mol
• C)731 kJ/mol
• D)1.41 * 10³ kJ/mol
• E)2.77 * 10³ kJ/mol

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Definitions:

Mobility Testing

A process of assessing the range of motion and ease of movement in joints, muscles, and the body as a whole to identify potential limitations or issues.

Muscle Strength Testing

A clinical examination conducted to evaluate the function and strength of individual muscles and muscle groups based on a standardized grading system.

Dorsiflexion

The movement of raising the foot upwards towards the shin, decreasing the angle between the dorsum of the foot and the leg.

Lateral Flexion

The movement of bending sideways at the waist or neck, which decreases the angle between the body and the limbs.