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Home Q & A Board Science-Related Homework Help Chemistry (Moderator: Laser_3)
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Whelan Whelan
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8 years ago
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.
Textbook 
Introductory Chemistry Essentials

Introductory Chemistry Essentials


Edition: 5th
Author:
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hbutler2hbutler2
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