.52h of a cheese puff is burned under an aluminum can filled with 50.1 ML of water. The water temperature in the can increases by 2.3°C. how many calories did the cheese puff release?
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Expert's answer
2017-03-27T16:08:06-0400
In assumption that the energy released is not dissipated and all transferred in the energy of the water heating, we can write the following equation:
Q_combustion=Q_water
The change of the temperature of water is related to the energy of heating as:
Q_water=cm∆T,
where c is the specific heat of water: c=1 cal kg^(-1) ℃^(-1). Assuming 1g/ml density of water, the mass of the water is 50.1 ml* 1 g/ml = 50.1 g. Then, the energy released is:
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