Ethanol (C₂H₅OH)burns According to the Equation C₂H₅OH(l)+ 3O₂(g) $\rarr$ 2CO₂(g)+ 3H₂O(l) $\Delta$

question 103

Multiple Choice

Ethanol (C₂H₅OH) burns according to the equation C₂H₅OH(l) + 3O₂(g) $\rarr$ 2CO₂(g) + 3H₂O(l) , $\Delta$ H°_rxn = -1367 kJ/mol.
How much heat is released when 35.0 g of ethanol is burned?

• A)1,797 kJ
• B)1,367 kJ
• C)9.61 * 10^-4 kJ
• D)4.78 * 10⁴ kJ
• E)1,040 kJ

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Definitions:

Magnesium Ion

Magnesium ion is a positively charged ion essential for many cellular processes, including enzyme activity, energy production, and neurotransmission.

Phosphate Group

A chemical group consisting of a phosphorus atom bound to four oxygen atoms, important in energy transfer and molecular structure in biological systems.

Hydrocarbon Side

Refers to the nonpolar, hydrophobic part of a molecule that consists of just hydrogen and carbon, commonly found in organic compounds and influencing their chemical behavior.

Photosynthesis

The process by which green plants and some other organisms use sunlight to synthesize foods from carbon dioxide and water, producing oxygen as a byproduct.