Exhibit 12-1 The Following Question(s) Pertain to the Combustion of Liquid Ethanol

question 27

Multiple Choice

Exhibit 12-1
The following question(s) pertain to the combustion of liquid ethanol (C₂H₅OH) to form carbon dioxide gas and water vapor.
Refer to Exhibit 12-1. What is DH°_rxn for the combustion of ethanol?

• A) -1367 kJ
• B) -1235 kJ
• C) -278 kJ
• D) -913 kJ

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Definitions:

Opportunity Cost

The omission of possible gains that could come from different options when one is preferred.

Comparative Advantage

The competence of an individual, firm, or nation to forge a good or render a service with a lower forfeited opportunity compared to others in the market.

Productivity

A measure of the efficiency of production, usually defined as the ratio of outputs produced to inputs used.

Opportunity Costs

The cost of foregoing the next best alternative when making a decision or choosing one option over another.