Calorimeter Questions

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Stephanie_Younan_3D
Posts: 11
Joined: Sat Jul 09, 2016 3:00 am

Calorimeter Questions

Postby Stephanie_Younan_3D » Sat Jan 28, 2017 11:09 pm

When you are doing a problem using a calorimeter, does deltaV always equal 0?

Chem_Mod
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Re: Calorimeter Questions

Postby Chem_Mod » Sun Jan 29, 2017 3:17 pm

Only for a constant V (bomb) calorimeter.

swatiperepa
Posts: 19
Joined: Wed Sep 21, 2016 2:59 pm

Re: Calorimeter Questions

Postby swatiperepa » Sun Feb 05, 2017 7:51 pm

Do we need to know how to do questions related to calibrating the calorimeter? If so, how do we do those? Do you just make the value of q negative?

704784857
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Joined: Wed Sep 21, 2016 2:55 pm

Re: Calorimeter Questions

Postby 704784857 » Sun Feb 05, 2017 11:27 pm

Hi swatiperepa!

I know that there are questions that specifically ask you to calculate the heat capacity of the calorimeter. In questions like this, the mass and temperature of the added water and calorimeter, in addition to the final temperature reached, is given. Thus, you would find seperately the energy lost by the hot water and energy gained by the cold water using the equation q=m*C*deltaT. Subtract both q to find what the calorimeter got, and then find the heat capacity of the calorimeter by dividing the difference in q by final temperature.


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