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Home Q & A Board Science-Related Homework Help Chemistry (Moderator: Laser_3)
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cloveb cloveb
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7 years ago
A 0.10 g piece of chocolate cake is combusted with oxygen in a bomb calorimeter. The
temperature of 4,000 g of H2O in the calorimeter is raised by 0.32 K. (The specific heat of
the water is 1.0 cal/g·K and the heat of vaporization of water is 540 cal/g.) What is ΔE for
the combustion of chocolate cake? Assume no heat is absorbed by the calorimeter.

1. −460 kcal/g
2. −532 kcal/g
3. −13.3 kcal/g
4. −12.8 kcal/g
5. −3900 kcal/g
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bolbolbolbol
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7 years ago
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