Given the Following Information, Calculate ΔH°(in Kcal Mol-1) For: LiCl(s)

question 19

Multiple Choice

Given the following information, calculate ΔH°(in kcal mol-1) for: LiCl(s) → Cl-(g) + Li+(g) Process ΔH° (kcal mol-1)
Li(s) → Li(g) +37
Li(g) → Li⁺(g) + e- +124
Cl₂(g) → 2Cl(g) +29 (per mole Cl)
Cl(g) + e- → Cl-(g) -83
2Li(s) + Cl₂(g) → 2LiCl(s) -109 (per mole LiCl)

• A) +73 kcal mol-1
• B) +148 kcal mol-1
• C) +216 kcal mol-1
• D) -96 kcal mol-1
• E) -49 kcal mol-1

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Definitions:

Memory Cells

Specific types of immune cells that remember past infections and can quickly respond to repeated exposures to the same pathogen.

Antigen

A substance that can induce an immune response, often seen as foreign by the body's immune system.

Species Resistance

The natural ability of a species to resist or fend off infections and diseases due to inherent genetic or physiological factors.

Naturally Acquired

Immunity or resistance developed through natural exposure to pathogens rather than through vaccination.