Calorimeter - Type of System
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Calorimeter - Type of System
Is a calorimeter always isolated? Therefore, does delta U always equal work, assuming no heat can enter or leave the system?
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Re: Calorimeter - Type of System
A calorimeter is an isolated system so change in internal energy is always zero because neither there is a change in heat (q=0) nor there is any change in volume (w=0).
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Re: Calorimeter - Type of System
Calorimeters are isolated systems because they are used to determine the heat capacities of substances, so no heat can be lost. Therefore, in calorimeters, it would be implied that the change in internal energy is equal to work since the change in heat is zero.
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Re: Calorimeter - Type of System
Calorimeters are isolated systems. that is why you can calculate the final temperature of water inside a calorimeter based on the mass of calorimeter and water and their heat capacities. The heat lost by the calorimeter is absorbed by water since the water is an isolated system and no heat is lost to surroundings
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Re: Calorimeter - Type of System
Also, a bomb calorimeter, an isolated system, will always have constant volume.
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