Motor Fuels Are Mixtures of Hydrocarbons, but They Can Be

question 12

Essay

Motor fuels are mixtures of hydrocarbons, but they can be characterized by their average properties. Gasoline (114 g/mol average, d = 0.69 g/mL) and diesel fuel (226 g/mol average, d = 0.85 g/mL) have average enthalpies of combustion of 5,650 kJ/mol and 10,200 kJ/mol, respectively. Calculate the fuel density (kJ/mL) of these compounds, and determine how many times more valuable diesel fuel is in terms of its energy content as measured by fuel density.

Differentiate between prejudice and discrimination and understand their consequences in social contexts.

Explain the realistic conflict theory and its relevance to intergroup relations.

Understand the concept and examples of discrimination.

Comprehend the mechanisms and theories explaining prejudice and stereotyping.

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Definitions:

Net Operating Income

The revenue from a business's operations after subtracting operating expenses, excluding taxes, and interest.

Common Fixed Expense

Costs that do not vary with production volume, and are shared among different products or business segments.

Contribution Margin Ratio

The portion of sales revenue left over after variable expenses have been deducted, expressed as a percentage of sales revenue.

Variable Expenses

Costs that vary in direct proportion to changes in an activity level or volume, such as raw materials and direct labor.