Page 1 of 1

Symbol inquiry

Posted: Wed Feb 06, 2019 8:47 pm
by Vana Mirzakhani 3I
Does change in U = internal energy or does just U by itself = internal energy? I am confused as to which symbol is the correct one to represent internal energy? Thank you.

Re: Symbol inquiry

Posted: Wed Feb 06, 2019 9:22 pm
by Gillian Murphy 2C
Internal energy is represented by "U", and change of internal energy is represented by "ΔU"
the delta symbol (Δ) always represents a change in something

Re: Symbol inquiry

Posted: Wed Feb 06, 2019 9:22 pm
by Swetha Ampabathina1I
The symbol U represents internal energy which is just the total store of energy in a system. Change in internal energy is equal to the work of a system.

Re: Symbol inquiry

Posted: Wed Feb 06, 2019 10:16 pm
by MadisonB
Change in internal energy: ΔU
Internal energy: U

Re: Symbol inquiry

Posted: Wed Feb 06, 2019 11:26 pm
by chrisavalos-2L
"U" is the variable that represents the actual internal energy of a system. While "△U" represents the change in the internal energy of a system.