The Formation of Ammonia from Elemental Nitrogen and Hydrogen Is

question 34

Multiple Choice

The formation of ammonia from elemental nitrogen and hydrogen is an exothermic process. $\mathrm{N}_{2}(g) +3 \mathrm{H}_{2}(g) \rightleftharpoons 2 \mathrm{NH}_{3}(g) \quad\quad\quad\quad\quad\quad \Delta H^{\circ}=-92.2 \mathrm{~kJ} / \mathrm{mol}$
Assuming the reaction is at equilibrium,which one of the following changes will drive the reaction to the right?

• A) adding ammonia
• B) increasing the temperature
• C) increasing the pressure
• D) removing hydrogen
• E) adding a catalyst

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Definitions:

Mitosis

The process of cell division in eukaryotic cells where one cell divides to produce two genetically identical daughter cells.

Prophase

The first stage of cell division in both mitosis and meiosis, characterized by the condensing of chromatin into visible chromosomes.

Metaphase

A stage of cell division where chromosomes align in the middle of the cell before being separated into each of the two daughter cells.

Paired Comparisons

A statistical technique that involves comparing each pair in a set of observations to assess differences.