For the Following Reactions,the ΔH°_rxn Is NOT Equal to ΔH°_f

question 95

Multiple Choice

For the following reactions,the ΔH°_rxn is NOT equal to ΔH°_f for the product except for ________.

• A)H₂ (g)+ 1/2 O₂ (g)→ H₂O (l)
• B)H₂ (g)+ O₂ (g)→ H₂O₂ (l)
• C)2C (s, graphite)+ 2H₂ (g)→ C₂H₄ (g)
• D)1/2 N₂ (g)+ O₂ (g)→ NO₂ (g)
• E)all of the above

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Definitions:

Urinary System

The organs involved in the production, storage, and elimination of urine, including the kidneys, ureters, bladder, and urethra.

Reproductive System

The biological system in animals and humans responsible for reproduction, including organs such as the ovaries, testes, and uterus.

Oropharyngeal

Pertaining to the oropharynx, the part of the throat at the back of the mouth, including the area where the oral cavity joins the pharynx.

Mouth

The opening in the face used for intake of food and drink, articulation of speech, and respiratory activities.