Using the Bond Energies Provided Below, Calculate H° for the Reaction

question 27

Multiple Choice

Using the bond energies provided below, calculate H° for the reaction CH₄(g) + 4Cl₂(g)  CCl₄(g) + 4HCl(g)
Bond energies: C-H = 413 kJ/mol, Cl-Cl = 243 kJ/mol, C-Cl = 339 kJ/mol, H-Cl = 427 kJ/mol

• A) 1422 kJ
• B) 440 kJ
• C) 110 kJ
• D) -110 kJ
• E) - 440 kJ

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Definitions:

Transformation of Energy

The process by which energy changes from one form to another, such as from chemical energy to kinetic energy or thermal energy to electrical energy.

Mitochondria

Intracellular organelles that are the sites of oxidative phosphorylation in eukaryotes; include an outer membrane and an inner membrane.

Mitotic Spindle

Structure consisting mainly of microtubules that provides the framework for chromosome movement during cell division.

Chromosomes

Thread-like structures located inside the nucleus of animal and plant cells, made of protein and a single molecule of DNA.