## internal energy

Posts: 93
Joined: Thu Jul 11, 2019 12:17 am

### internal energy

How do you calculate internal energy?

Alice Ma 2K
Posts: 52
Joined: Wed Nov 13, 2019 12:26 am

### Re: internal energy

The change in internal energy, delta U, is calculated through Q plus W, where Q is the amount of heat transferred into the system and W is the work done on the system.

Miriam Villarreal 1J
Posts: 105
Joined: Sat Aug 17, 2019 12:16 am

### Re: internal energy

in the equation ΔU=q+w w=0 and ΔU=q. The internal energy itself , NOT the change is equal to the heat of the system.

Kayli Choy 2F
Posts: 100
Joined: Sat Aug 24, 2019 12:17 am

### Re: internal energy

Additionally, if the change in internal energy is positive, then final internal energy is larger than initial internal energy. If the change in internal energy is negative, final internal energy is smaller than initial internal energy. The energy of a closed system can be altered by heating/cooling the system, or compressing/expanding the system, hence the equation delta U = Q + W, where q is heat and w is work.