Changing the energies of systems

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Zoya Mulji 1K
Posts: 105
Joined: Thu Jul 11, 2019 12:15 am

Changing the energies of systems

Postby Zoya Mulji 1K » Thu Jan 30, 2020 6:28 pm

Can someone review how you can change the energies of the three types of systems?

Sjeffrey_1C
Posts: 108
Joined: Wed Feb 20, 2019 12:17 am

Re: Changing the energies of systems

Postby Sjeffrey_1C » Thu Jan 30, 2020 6:58 pm

For an open system, energy can be changed by adding/removing reactants or products.

For a closed system, energy can be changed by heating/cooling or compressing/expanding the system.

For an isolated system, energy cannot be changed.

Sally Qiu 2E
Posts: 105
Joined: Fri Aug 30, 2019 12:18 am

Re: Changing the energies of systems

Postby Sally Qiu 2E » Thu Jan 30, 2020 7:06 pm

in an open system, you can add or remove products/reactants. in a closed system, you can change the pressure by compression/expansion (work) or changing the temperature. you cannot change the energy of an isolated system.


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