Ammonia Is Prepared Industrially by the Following Reaction

question 28

Multiple Choice

Ammonia is prepared industrially by the following reaction:
N₂(g) + 3H₂(g)
2NH₃(g)
For the reaction, ΔH° = -92.2 kJ and K (at 25°C) = 4.0 × 10⁸. When the temperature of the reaction is increased to 500°C, which of the following statements is true?

• A) Product formation (at equilibrium) is not favored as the temperature is raised.
• B) K for the reaction will be larger at 500°C than at 25°C.
• C) The reaction of N₂ with H₂ to form ammonia is endothermic.
• D) At equilibrium, more NH₃ is present at 500°C than at 25°C.
• E) None of these is true.

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Definitions:

Average Total Cost

The total cost divided by the quantity of output produced, representing the average cost per unit of output.

Short-Run Supply Curve

A graphical representation showing the quantity of a good or service that producers are willing and able to sell at different prices over a short period, holding other factors constant.

Marginal Cost Curve

A graphical representation that shows how the cost of producing one more unit of a good changes as the production volume changes.

Average Variable Cost

The total variable costs of production divided by the quantity of output produced, representing the variable cost per unit of output.