Bomb Calorimeter

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Lauryn Jordan 1F
Posts: 76
Joined: Fri Sep 29, 2017 7:07 am

Bomb Calorimeter

Postby Lauryn Jordan 1F » Tue Mar 13, 2018 7:36 pm

I made a note that says bomb calorimeter = constant volume, how would you find the internal energy? does constant volume mean delta v = 0?

Samantha Kan 2L
Posts: 30
Joined: Sat Jul 22, 2017 3:00 am

Re: Bomb Calorimeter

Postby Samantha Kan 2L » Tue Mar 13, 2018 7:39 pm

Constant volume does mean that delta V is equal to 0. Since a bomb calorimeter is an isolated system, Delta U is equal to 0 because no heat or work is being transferred/done.

Aya Shokair- Dis 2H
Posts: 58
Joined: Fri Sep 29, 2017 7:07 am

Re: Bomb Calorimeter

Postby Aya Shokair- Dis 2H » Tue Mar 13, 2018 7:56 pm

A bomb calorimeter does mean there is no change in volume (ΔV=0).
A bomb calorimeter is an isolated system, meaning that there is no heat transfer between the the system (bomb calorimeter) and surrounding. And the surrounding isn't doing work on the system, nor is the system doing work on the surroundings.

However, you can have a reaction occurring INSIDE the bomb calorimeter. Making the solution the surroundings and the reaction the system. In doing so, you can measure the heat absorbed/released at constant volume.

q(cal)= -q(rxn)
q(cal)= C(cal) x ΔT(solution)

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