calorimetry

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Sophia Dinh 1D
Posts: 100
Joined: Thu Jul 25, 2019 12:15 am

calorimetry

Postby Sophia Dinh 1D » Fri Mar 13, 2020 2:29 am

what is the difference between the regular and the bomb calorimeter and how do the equations change to accommodate the difference?

William Chan 1D
Posts: 102
Joined: Sat Sep 14, 2019 12:15 am

Re: calorimetry

Postby William Chan 1D » Fri Mar 13, 2020 9:55 am

By regular, do you mean a constant-pressure calorimeter? This would be like an insulated styrofoam cup with an open top.

A bomb calorimeter has constant volume, so it isn't open. This is usually considered an isolated system, for no heat or matter can be exchanged with the environment.

ShravanPatel2B
Posts: 100
Joined: Fri Aug 30, 2019 12:18 am

Re: calorimetry

Postby ShravanPatel2B » Fri Mar 13, 2020 3:26 pm

How would we solve problems involving a bomb calorimeter when there are conditions like the volume being constant?

Ryan Yee 1J
Posts: 101
Joined: Sat Aug 17, 2019 12:16 am

Re: calorimetry

Postby Ryan Yee 1J » Fri Mar 13, 2020 4:02 pm

Regular calorimeters (the coffee cup) is done at a constant pressure, while bomb calorimeters are done at constant volume.

Omar Selim 1D
Posts: 108
Joined: Sat Jul 20, 2019 12:16 am

Re: calorimetry

Postby Omar Selim 1D » Fri Mar 13, 2020 6:06 pm

Regular calorimeters assume constant pressure while bomb calorimeters assume constant volume. They are both isolated systems

Alan Cornejo 1a
Posts: 98
Joined: Fri Aug 30, 2019 12:15 am

Re: calorimetry

Postby Alan Cornejo 1a » Sun Mar 15, 2020 7:40 am

Regular calorimeters is done using a constant pressure, while the difference in bomb calorimeters is that they are done at constant volume.

ayushibanerjee06
Posts: 177
Joined: Thu Jul 11, 2019 12:16 am
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Re: calorimetry

Postby ayushibanerjee06 » Sun Mar 15, 2020 7:42 am

As everyone mentioned previously, bomb calorimeters have no change in volume. You should take note that since there is no change in volume, work = 0 and that the internal energy is only affected by changes in q.


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