Bomb Calorimeter

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Rachel N 1I
Posts: 48
Joined: Thu Jul 27, 2017 3:00 am

Bomb Calorimeter

Postby Rachel N 1I » Sat Mar 17, 2018 12:19 am

Are bomb calorimeters considered vacuums?

Paula Sing 1J
Posts: 36
Joined: Fri Sep 29, 2017 7:06 am

Re: Bomb Calorimeter

Postby Paula Sing 1J » Sat Mar 17, 2018 12:23 am

A bomb calorimeter is like a regular a calorimeter except a bomb calorimeter is an isolated system which is sealed and thus provides constant pressure and volume.

Erik Khong 2E
Posts: 50
Joined: Fri Sep 29, 2017 7:07 am

Re: Bomb Calorimeter

Postby Erik Khong 2E » Sat Mar 17, 2018 3:32 am

No, bomb calorimeters are not vacuums.

904940852
Posts: 53
Joined: Fri Sep 29, 2017 7:07 am

Re: Bomb Calorimeter

Postby 904940852 » Sat Mar 17, 2018 6:03 am

it is an isolated system which means that the volume is constant and matter and energy can not be exchanged

Cynthia Bui 2H
Posts: 30
Joined: Fri Sep 29, 2017 7:05 am

Re: Bomb Calorimeter

Postby Cynthia Bui 2H » Sat Mar 17, 2018 11:42 am

No, they're not considered vacuums.

Rachel N 1I
Posts: 48
Joined: Thu Jul 27, 2017 3:00 am

Re: Bomb Calorimeter

Postby Rachel N 1I » Sat Mar 17, 2018 12:32 pm

So for Test #1 Question 3a:

Propane is burned in the presence in the oxygen inside a sealed bomb calorimeter in contact with a heat bath and the pressure increases inside the calorimeter from 1 atmosphere to 1.5 atmospheres.

How would you justify that there is no work being done?

Lucia H 2L
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Joined: Mon Nov 14, 2016 3:00 am
Been upvoted: 1 time

Re: Bomb Calorimeter

Postby Lucia H 2L » Sat Mar 17, 2018 9:34 pm

since bomb calorimeters have rigid walls, it is impossible for volume to change, so w = -PdV and dV = 0 so w = 0.


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