Which of the Following Is True for Pure Oxygen Gas

question 43

Multiple Choice

Which of the following is true for pure oxygen gas, O₂(g) at 25°C?

• A) .  H° _f > 0
• B) .  H° _f < 0
• C) .  G° _f > 0
• D) .  G° _f < 0
• E) S° > 0

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Definitions:

Endorphins

Natural peptides produced by the brain that act as neurotransmitters to reduce pain perception and produce a feeling of well-being.

Sympathetic Nervous System

A part of the autonomic nervous system that prepares the body for quick action in emergencies, the 'fight or flight' response.

Limbic System

A complex system of nerves and networks in the brain, involved in basic emotions (such as fear and pleasure), drives (such as those for food and sex), and the formation of memories.

Negative Emotions

Feelings that are generally considered unpleasant or undesirable, such as anger, sadness, fear, or jealousy.