Calorimeter - Type of System

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madisondesilva1c
Posts: 91
Joined: Fri Sep 28, 2018 12:16 am

Calorimeter - Type of System

Postby madisondesilva1c » Tue Feb 12, 2019 1:11 pm

Is a calorimeter always isolated? Therefore, does delta U always equal work, assuming no heat can enter or leave the system?

Riya Shah 4H
Posts: 65
Joined: Wed May 02, 2018 3:00 am

Re: Calorimeter - Type of System

Postby Riya Shah 4H » Tue Feb 12, 2019 1:27 pm

A calorimeter is an isolated system so change in internal energy is always zero because neither there is a change in heat (q=0) nor there is any change in volume (w=0).

megan blatt 2B
Posts: 61
Joined: Fri Sep 28, 2018 12:28 am

Re: Calorimeter - Type of System

Postby megan blatt 2B » Thu Feb 14, 2019 3:36 pm

Calorimeters are isolated systems because they are used to determine the heat capacities of substances, so no heat can be lost. Therefore, in calorimeters, it would be implied that the change in internal energy is equal to work since the change in heat is zero.

Emily Huang 1E
Posts: 30
Joined: Fri Sep 28, 2018 12:20 am

Re: Calorimeter - Type of System

Postby Emily Huang 1E » Thu Feb 14, 2019 3:43 pm

Calorimeters are isolated systems. that is why you can calculate the final temperature of water inside a calorimeter based on the mass of calorimeter and water and their heat capacities. The heat lost by the calorimeter is absorbed by water since the water is an isolated system and no heat is lost to surroundings

MackenziePerillo-1L
Posts: 31
Joined: Fri Sep 28, 2018 12:19 am

Re: Calorimeter - Type of System

Postby MackenziePerillo-1L » Sat Feb 16, 2019 1:04 pm

Also, a bomb calorimeter, an isolated system, will always have constant volume.

inlovewithchemistry
Posts: 104
Joined: Fri Sep 28, 2018 12:19 am

Re: Calorimeter - Type of System

Postby inlovewithchemistry » Tue Feb 19, 2019 11:10 pm

What are some other systems that will always be isolated?


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