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Aluminium foil would cool the soda faster. However it would depend on what you are comparing with, the material surrounding the soda at the start. It would also depend on the surrounding temperature. Heat would move from regions of higher temperature to regions of lower temperature, hence the colder the surroundings the faster the rate of heat transfer. Most metals are good conductors of heat as they have a mobile sea of delocalised electrons which can allow heat to be conducted away from the soda. However, on the other hand you would have to consider the heat capacity of the aluminium as well. The aluminium would carry heat by itself already and hence might affect the final temperature of the soda if it is kept in a small area without anything to remove the heat. However the amount of heat possessed by the aluminium foil can also be considered negligible if a small mass is used as the specific heat capacity of aluminium is only 910J/kgK. The surface are of the aluminium foil and how it is in contact with the soda also plays a important factor, as a larger surface area to volume ratio would facilitate better rate of heat transfer. Please correct this if this is wrong.

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Q: Does aluminum foil cool a soda faster?
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Is aluminum foil a better insulator alone or with bubble wrap?

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