## Heat Capacity for Calorimeters.

Daniel Yu 1E
Posts: 100
Joined: Sat Aug 24, 2019 12:15 am

### Heat Capacity for Calorimeters.

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?

Kaylee Sepulveda 4G
Posts: 100
Joined: Thu Jul 11, 2019 12:16 am

### Re: Heat Capacity for Calorimeters.

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 119 times

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

PranaviKolla2B
Posts: 114
Joined: Fri Aug 30, 2019 12:17 am

### Re: Heat Capacity for Calorimeters.

What is the difference between a calorimeter and a bomb calorimeter?

BCaballero_4F
Posts: 94
Joined: Wed Nov 14, 2018 12:22 am

### Re: Heat Capacity for Calorimeters.

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.

Aman Sankineni 2L
Posts: 103
Joined: Fri Aug 30, 2019 12:17 am

### Re: Heat Capacity for Calorimeters.

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.