Using the Information Below, Calculate ΔH°_f for PbO(s)

question 23

Multiple Choice

Using the information below, calculate ΔH°_f for PbO(s) .PbO(s) + CO(g) → Pb(s) + CO₂(g) , ΔH° = -131.4 kJ
ΔH°_f for CO₂(g) = -393.5 kJ/mol
ΔH°_f for CO(g) = -110.5 kJ/mol

• A) +283.0 kJ/mol
• B) +252.1 kJ/mol
• C) -151.6 kJ/mol
• D) -283.0 kJ/mol
• E) -372.6 kJ/mol

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Definitions:

Sympathetic Nervous System

Part of the autonomic nervous system that activates the body's resources for emergencies, producing a 'fight or flight' response.

Fight-Or-Flight

A physiological response to perceived harmful events, attacks, or threats to survival, initiating a hormonal cascade that prepares the body to fight or flee.

General Adaptation Syndrome

A three-phase psychological response to stress outlined by Hans Selye, involving alarm, resistance, and exhaustion stages.

Stress Appraisal

The process by which individuals evaluate and interpret a stressor as challenging, threatening, or benign, influencing their reaction to it.