Methanol Can Be Synthesized by Combining Carbon Monoxide and Hydrogen

question 71

Multiple Choice

Methanol can be synthesized by combining carbon monoxide and hydrogen. CO(g) + 2H₂(g) ⇄ CH₃OH(g) ΔH°_rxn = −90.7 kJ
A reaction vessel contains these compounds at equilibrium. What effect will be seen when equilibrium is re-established after decreasing the temperature by 45°C?

• A)All the partial pressures will decrease.
• B)The partial pressure of methanol will decrease.
• C)The partial pressures of hydrogen and methanol will decrease.
• D)The partial pressure of hydrogen will increase.
• E)The partial pressure of carbon monoxide will decrease.

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Definitions:

Average Total Cost

Total cost divided by the number of units produced, representing the cost per unit of output.

Average Total Costs

The sum of all the production costs divided by the quantity of output produced, representing the per-unit cost of production.

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Costs that vary with the level of output, divided by the quantity of output produced, indicating the variable cost per unit.

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The sum of all costs that remain constant regardless of the level of production or sales in a company.