Use the Bond Enthalpy Data Given to Estimate the Heat $\circ$

question 43

Multiple Choice

Use the bond enthalpy data given to estimate the heat released when 25.0 g of acetylene gas, C₂H₂, burns in excess oxygen to yield carbon dioxide and water vapor at 25 ^$\circ$ C.
BE(C-C) = 347 kJ/mol
BE(C $\equiv$ C) = 812 kJ/mol
BE(C=O in CO₂) = 799 kJ/mol
BE(C-H) = 414 kJ/mol
BE(O-H) = 460 kJ/mol
BE(O=O) = 498.7 kJ/mol

• A) 16.8 kJ
• B) 364 kJ
• C) 447 kJ
• D) 1180 kJ
• E) 1230 kJ

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Definitions:

Nandi

An ethnic group located in Kenya, known for their agricultural practices, cattle-herding, and significance in Kenyan history and society.

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A marital arrangement involving two or more brothers who are married to the same wife, typically found in certain societies as a cultural strategy to limit population growth or preserve family land.

Adaptive Value

The usefulness of a trait or behavior in helping an organism survive and reproduce within its environment.

Dowry

A transfer of parental property, gifts, or money at the marriage of a daughter, traditionally seen in many societies.