Gasoline Is Primarily a Mixture of Hydrocarbons and Is Sold $\degree$

question 24

Multiple Choice

Gasoline is primarily a mixture of hydrocarbons and is sold with an octane rating that is based on a comparison with the properties of isooctane (C₈H₁₈) , which has an enthalpy of vaporization of 35.8 kJ/mol and a normal boiling point of 98.2 $\degree$ C.Determine the vapor pressure of isooctane on a very hot day when the temperature is 38.0 $\degree$ C.

• A)80.6 torr
• B)36.7 torr
• C)67.8 torr
• D)47.9 torr
• E)89.3 torr

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Facial Expression

The movement of the facial muscles to convey emotions, thoughts, or feelings.

Empathy

The capacity to understand or feel what another person is experiencing from within their frame of reference.

Parasympathetic Nervous System

The parasympathetic nervous system is part of the autonomic nervous system responsible for conserving energy, promoting rest, digestion, and regeneration processes.

Nonverbal Communication

A form of communication that does not involve words but uses gestures, facial expressions, and body language to convey messages.