Calorimeter

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Michael Du 1E
Posts: 117
Joined: Sun Sep 22, 2019 12:16 am

Calorimeter

Postby Michael Du 1E » Tue Jan 28, 2020 10:22 pm

Can anyone explain to me how the calorimeter works? I only know the basics of it in which it measures the specific heat capacity. However, I believe he went more into detail on it with a picture of it etc. Thank you.

Elizabeth Harty 1A
Posts: 125
Joined: Sat Jul 20, 2019 12:16 am

Re: Calorimeter

Postby Elizabeth Harty 1A » Tue Jan 28, 2020 10:28 pm

Calorimeters measure the heat involved in a chemical rxn or physical process. When a liquid loses or gains energy, its temperature changes. The calorimeter (or the simple one you use in the lab) measures the temperature change for the liquid and the mass to determine the amount of energy lost or gained by the liquid. Part of it works like a hydro flask with an inner and outer section to minimize heat loss, and there is a thermometer and a stirrer. When you measure the temp and take into account the mass and specific heat capacity you can measure heat transfer.

Alice Ma 2K
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Joined: Wed Nov 13, 2019 12:26 am

Re: Calorimeter

Postby Alice Ma 2K » Tue Jan 28, 2020 11:48 pm

A calorimeter measures the mass of liquid and the temperature change of the liquid to determine the quantity of energy gained or lost. It will usually have an inner and outer vessel to create an insulator and a thermometer and stirrer. The temperature change can be recorded and specific heat capacity can be calculated.

Brooke Yasuda 2J
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Joined: Sat Jul 20, 2019 12:17 am

Re: Calorimeter

Postby Brooke Yasuda 2J » Wed Jan 29, 2020 12:56 am

Yeah, and in calorimetry problems we can say that all of the heat lost by the reaction is gained by the calorimeter, and vice versa. So the heat lost by the surroundings is gained/absorbed by the reaction

Kayli Choy 2F
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Joined: Sat Aug 24, 2019 12:17 am

Re: Calorimeter

Postby Kayli Choy 2F » Wed Jan 29, 2020 3:32 pm

Additionally, a bomb calorimeter is a special type of calorimeter where the volume is held constant, and a reaction occurs in a vessel of water. The temperature of the entire assembly is then monitored, because the heat gained by the surrounding water is equal to the heat released by the reaction.

Maya Beal Dis 1D
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Re: Calorimeter

Postby Maya Beal Dis 1D » Wed Jan 29, 2020 3:34 pm

A bomb calorimeter is an example of an isolated system because no energy or matter can be lost or gained.


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