Which of CH₄(g),C₂H₂(g),and CH₃OH(l)provides the Most Energy Per Gram Upon

question 121

Multiple Choice

Which of CH₄(g) ,C₂H₂(g) ,and CH₃OH(l) provides the most energy per gram upon combustion and which provides the least? CH₄(g) + 2 O₂(g) → CO₂(g) + 2 H₂O(l) ΔH° = -890 kJ
2 C₂H₂(g) + 5 O₂(g) → 4 CO₂(g) + 2 H₂O(l) ΔH° = -2599 kJ
2 CH₃OH(l) + 3 O₂(g) → 2 CO₂(g) + 4 H₂O(l) ΔH° = -1453 kJ

• A)C₂H₂ provides the most energy per gram and CH₄ the least.
• B)C₂H₂ provides the most energy per gram and CH₃OH the least.
• C)CH₄ provides the most energy per gram and CH₃OH the least.
• D)CH₄ provides the most energy per gram and C₂H₂ the least.

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Definitions:

MC

The additional cost incurred for producing one more unit of a good or service; it's synonymous with marginal cost.

Marginal Cost

is defined as the increase in total production cost that arises from producing an additional unit of a good or service.

TVC

Total Variable Costs, which are the sum of expenses that vary directly with the level of production or business activity.

TFC

Total Fixed Costs, which are the sum of all costs that remain constant regardless of the level of production or output.