Which of the Following Fuels Has the Lowest Fuel Value

question 7

Multiple Choice

Which of the following fuels has the lowest fuel value (kJ/g) ?

• A)natural gas, CH₄(g), 16.0 g/mol, H_comb 801 kJ/mol
• B)ethanol, CH₃CH₂OH(l), 46.1 g/mol, H_comb 1,368 kJ/mol
• C)heating oil, C₁₆H₃₄(l), 226 g/mol, H_comb 10,800 kJ/mol
• D)coal, C₁₃₅H₉₆O₉NS(s), 1906 g/mol, H_comb 44,000 kJ/mol
• E)wood, C₆H₁₂O₆(s), 180 g/mol, H_comb 2,540 kJ/mol

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Definitions:

Price Ceiling

A legal maximum price that can be charged for a product or service, intended to protect consumers from high prices.

Consumer Surplus

The discrepancy between what consumers are ready and capable of spending for a good or service, as shown by the demand curve, and the actual amount paid by them, known as the market price.

Producer Surplus

The difference between what producers are willing to accept for a good or service versus what they actually receive, due to market prices.

Total Surplus

The aggregate benefit to society, constituted by the addition of consumer and producer surplus, derived from the creation and utilization of goods and services.