The Complete Combustion of Propane, C₃H₈(g), Is Represented by the Equation

question 85

Multiple Choice

The complete combustion of propane, C₃H₈(g) , is represented by the equation: C₃H₈(g) + 5 O₂(g) → 3 CO₂(g) + 4 H₂O(l) ΔH° = -2220 kJ
How much heat is evolved in the complete combustion of 2.50 g C₃H₈(g) ?

• A) 245 kJ
• B) 50.4 kJ
• C) 126 kJ
• D) 5.56 kJ
• E) 2.22 kJ

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An adjustment or change in behavior or physiology of an organism in response to a change in environmental conditions.

Sleep Patterns

The natural timing, duration, and quality of sleep, including cycles of REM and non-REM sleep, influenced by environmental factors, age, and health.

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Biological processes that occur within roughly a 24-hour cycle in living organisms, influencing sleep, hormone release, and other bodily functions.

Melatonin

A hormone produced by the pineal gland that regulates sleep-wake cycles.