Ethanol (CH₃CH₂OH) Has Been Suggested as an Alternative Fuel Source $\Delta$

question 85

Multiple Choice

Ethanol (CH₃CH₂OH) has been suggested as an alternative fuel source. Ethanol's enthalpy of combustion is $\Delta$ H_comb = -1,368 kJ/mol, and its density is 0.789 g/mL. What is the fuel value of ethanol (kJ/g) ?

• A) 3.75 kJ/g
• B) 1,079 kJ/g
• C) 1,734 kJ/g
• D) 23.4 kJ/g
• E) 29.7 kJ/g

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Definitions:

Analyze Ideas

The systematic examination of concepts or proposals to understand their components, relationships, and implications.

Persistent

The quality of continuing steadfastly or firmly in a course of action in spite of difficulty or opposition.

Mental Models

Internal representations of external reality that people use to understand and interact with the world around them, influencing decision-making and behavior.

Social Approval

The affirmative recognition or endorsement from others within a social context, often influencing behavior and decisions.