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### Heat Capacity for Calorimeters.

Posted: Sun Feb 16, 2020 10:23 pm
When you are doing thermodynamic calculations with solutions in calorimeters, why doesn't the mass/mol matter sometimes?
I've seen in some equations you need to use mass/ moles but in others it is ignored. Why is that?

### Re: Heat Capacity for Calorimeters.

Posted: Sun Feb 16, 2020 10:58 pm
Heat capacity is a state function, but heat capacity is an intensive property. In contrast, specific heat capacity and molar heat capacity are extensive properties. Extensive means that it depends on the amount of material being affected, so mols or grams would be a factor in your calculations.

heat capacity.jpg (30.31 KiB) Viewed 109 times

Here is a nice explanation of a bomb calorimeter calculation: https://www.youtube.com/watch?v=zEaMi5ob5Ig

### Re: Heat Capacity for Calorimeters.

Posted: Sun Feb 16, 2020 11:03 pm
What is the difference between a calorimeter and a bomb calorimeter?

### Re: Heat Capacity for Calorimeters.

Posted: Tue Feb 18, 2020 4:44 pm
PranaviKolla2B wrote:What is the difference between a calorimeter and a bomb calorimeter?

I believe a calorimeter is just a thermally insulated container while a bomb calorimeter is a sealed container that is metal in water which is also in an insulated container.

### Re: Heat Capacity for Calorimeters.

Posted: Tue Feb 18, 2020 4:47 pm
The difference between the two is that a regular calorimeter is simply a "thermally insulated container" while in a bomb calorimeter, the reaction takes place in a sealed metal container that is immersed in water in an insulated container.