Using the Following Thermochemical Equation, Determine the Amount of Heat

question 137

Multiple Choice

Using the following thermochemical equation, determine the amount of heat produced per kg of CO₂ formed during the combustion of benzene (C₆H₆) . 2C₆H₆(l) + 15O₂(g) → 12CO₂(g) + 6H₂O(g) Δ_rH° = -6278 kJ

• A)1.43 × 10⁵ kJ (kg CO₂)^-1
• B)2.30 × 10⁴ kJ (kg CO₂)^-1
• C)4.34 × 10⁴ kJ (kg CO₂)^-1
• D)1.19 × 10⁴ kJ (kg CO₂)^-1
• E)8.40 × 10⁵ kJ (kg CO₂)^-1

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Definitions:

Vomeronasal Organ

Pheromone-detecting organ of vertebrates.

Pheromones

Pheromones are chemical substances produced and released into the environment by an animal, affecting the behavior or physiology of others of its species.

Pressure

The force applied perpendicular to the surface of an object per unit area over which that force is distributed.

Human Tongue

A muscular organ in the mouth that helps in tasting, swallowing, and articulating speech.