Given That ΔH°f [CO(g)] = -110

question 6

Multiple Choice

Given that ΔH°f [CO(g) ] = -110.5 kJ/mol and ΔH°f [COCl₂(g) ] = -219.1 kJ/mol, what is the enthalpy of reaction for the formation of phosgene, COCl₂ from carbon monoxide, CO, and chlorine gas, Cl₂(g) ?

• A) +110.5 kJ
• B) -110.5 kJ
• C) +329.6 kJ
• D) -108.6 kJ
• E) -219.1 kJ

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Definitions:

Sexually Selected Ornaments

Physical traits evolved through sexual selection, often used to attract mates or compete with members of the same species, such as the colorful plumage of many birds.

Female Choice

A form of sexual selection where females choose their mates, often based on traits that indicate the male's genetic quality or fitness.

Cost of Sexual Reproduction

The energy and resources expended by organisms to produce offspring through sexual means, as opposed to asexual reproduction, which often incurs less cost.

Recombinant Chromosomes

Chromosomes that are formed by crossing over and recombination between homologous chromosomes during meiosis, resulting in new combinations of genetic material.