Why Doesn't the Gasoline in Your Car Spontaneously Ignite into Flames

question 34

Multiple Choice

Why doesn't the gasoline in your car spontaneously ignite into flames? (The reaction of gasoline with oxygen is called a combustion reaction and is the reaction that is used to power your car.)

• A) The products of a combustion reaction have more energy than the reactants.
• B) The gasoline in your car is in an air-tight container, so it cannot react with the oxygen from the air.
• C) The amount of energy in the bonds of the products exceeds the amount of energy in the bonds of the reactants.
• D) The reactants of the combustion of gasoline have less energy and the products.
• E) The gasoline in your car alone cannot overcome the activation energy.

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Definitions:

Medial Hypothalamus

An area of the brain involved in regulating hunger, thirst, and the body's energy balance.

REM Sleep

A sleep phase characterized by rapid eye movements, where dreaming occurs and brain activity is similar to wakefulness, important for processing emotions and memories.

Restorative Theory

A theory that suggests sleep is necessary for the body to repair and rejuvenate itself.

Circadian Theory

A concept pertaining to the biological processes that follow a roughly 24-hour cycle, affecting various physiological and psychological functions.