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omeli [17]
2 years ago
5

Which of the 3 molecules: Methane, Propane, Butane would release the most energy when combusted?

Chemistry
1 answer:
lesya [120]2 years ago
3 0

Answer:

butane

Explanation:

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What mass of octane must be burned in order to liberate 5270 kj of heat? δhcomb = -5471 kj/mol?
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As,
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Then,
                    5310 kJ heat will be given by  = X moles of Octane

Solving for X,
                                  X  =  (5310 kJ × 1 mol) ÷ 5471 kJ

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So, 0.970 moles of Octane will liberate 5310 kJ energy. Now changing moles to mass,
As,
                                  Moles  =  mass / M.mass
Or,
                                  Mass  =  Moles × M.mass
Putting values,
                                  Mass  =  0.970 mol × 114.23 g/mol

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