Calculate the Standard Enthalpy Change for the Reaction 2C₈H₁₈(l)+ 17O₂(g) $\rarr$

question 42

Multiple Choice

Calculate the standard enthalpy change for the reaction 2C₈H₁₈(l) + 17O₂(g) $\rarr$ 16CO(g) + 18H₂O(l) .
Given:
2C₈H₁₈(l) + 25O₂(g) $\rarr$ 16CO₂(g) + 18H₂O(l) $\Delta$ H° = -11,020 kJ/mol
2CO(g) + O₂(g) $\rarr$ 2CO₂(g) $\Delta$ H° = -566.0 kJ/mol

• A)10,450 kJ/mol
• B)6,492 kJ/mol
• C)15,550 kJ/mol
• D)-6,492 kJ/mol
• E)-10.450 kJ/mol

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Definitions:

Input of Energy

The introduction or absorption of energy into a system or process to initiate or drive reactions.

Free Energy

A thermodynamic quantity equivalent to the capacity of a system to do work, often used in biochemical and metabolic contexts.

Metabolic Energy

The energy that is produced and used by the cells during metabolic processes, necessary for maintaining the body's functions, such as muscle contractions and temperature regulation.

Potential Energy

The stored energy in an object or system due to its position or configuration.