For the Equilibrium Reaction 2SO₂(g)+ O₂(g) $\Delta$ Hº_rxn = -198 KJ/mol

question 54

Multiple Choice

For the equilibrium reaction 2SO₂(g) + O₂(g)
2SO₃(g) , $\Delta$ Hº_rxn = -198 kJ/mol.Which one of these factors would cause the equilibrium constant to increase?

• A)Decrease the temperature.
• B)Add SO₂ gas.
• C)Remove O₂ gas.
• D)Add a catalyst.
• E)None of these.

---

Definitions:

Cnidarians

A phylum of animals that are more complex than sponges, characterized by their radial symmetry, a central gastrovascular cavity, and the presence of cnidocytes; includes jellyfish, corals, and sea anemones.

Spiracles

External respiratory openings found in some animals, such as insects and some amphibians, that allow air to enter and exit the trachea.

Tracheae

Tubes in the respiratory system that conduct air to and from the lungs.

Book Lungs

Respiratory organs found in certain arachnids, such as spiders and scorpions, consisting of stacked leaf-like structures used for gas exchange.