Page 1 of 1

Changing the energy of a system

Posted: Wed Jan 24, 2018 9:31 pm
by Karen Ung 2H
When you add more of an amount of a substance in a system, does it increase or descreae the energy of a system?

Re: Changing the energy of a system

Posted: Wed Jan 24, 2018 10:07 pm
by Alyssa Parry Disc 1H
I'm pretty sure it increases the amount of energy

Re: Changing the energy of a system

Posted: Wed Jan 24, 2018 10:08 pm
by SantanaRodriguezDis1G
You can also change the energy of a system by heating or cooling it( if its a closed system) and by doing work on the system (compressing a piston)

Re: Changing the energy of a system

Posted: Wed Jan 24, 2018 10:27 pm
by Aya Shokair- Dis 2H
When you add more of a substance into the system, you are increasing the internal energy by increasing the potential energy.
Remember that internal energy is equal to KE + PE.

Re: Changing the energy of a system

Posted: Thu Jan 25, 2018 4:06 pm
by Justin Chang 2K
Adding more of a system increases the internal energy. Also it is good to know you cannot add/remove something from a system in a closed and isolated system.

Re: Changing the energy of a system

Posted: Fri Jan 26, 2018 12:12 am
by Wilson Yeh 1L
The energy increases. It's also important to note that energy is required to break bonds within a system and energy is lost when bonds are formed.

Re: Changing the energy of a system

Posted: Fri Jan 26, 2018 3:35 pm
by Yu Chong 2H
Adding more substance in a system will increase the internal energy of the system, since the added amount of substance will have their own energy, that energy is added to the original system.