Ethanol Undergoes Combustion in Oxygen to Produce Carbon Dioxide Gas $\Delta$

question 73

Multiple Choice

Ethanol undergoes combustion in oxygen to produce carbon dioxide gas and liquid water.The standard heat of combustion of ethanol, C₂H₅OH(l) , is -1366.8 kJ/mol. Given that $\Delta$ H°_f[CO₂(g) ] = -393.5 kJ/mol and $\Delta$ H°_f[H₂O(l) ] = -285.8 kJ/mol, what is the standard enthalpy of formation of ethanol?

• A)3,010 kJ/mol
• B)-687.6 kJ/mol
• C)-277.6 kJ/mol
• D)687.6 kJ/mol
• E)1,367 kJ/mol

Recognize the challenges and discrimination women face in the workplace.

Comprehend strategies for overcoming workplace discrimination and advancing in careers.

Understand the impact of linguistic style differences on communication and relationships in the workplace.

Identify the benefits of flexible work options and the challenges they may present.

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Definitions:

Variable Costs

Variable Costs are expenses that vary in direct proportion to changes in the levels of an activity or production volume, such as materials and labor costs.

Fixed Costs

Expenses that do not change with the level of production or sales, such as rent and salaries.

Direct Materials Price Variance

The difference between the actual cost and standard cost of direct materials used in production, indicating how effectively a company is purchasing its raw materials.

Data Collected

Information gathered through observation, experimentation, surveys, or other methods, which can be analyzed to gain insights or make decisions.