Question

Come up with an equation that best expresses the first law of thermodynamics, assuming Q is heat, U is internal energy, and W is work?

Answer 1

@missMob My 2nd question. /.\

Answer 2

The first law of thermodynamics is a version of the law of conservation of energy, adapted for thermodynamic systems. The internal energy of an isolated system is constant and energy can be transformed from one form to another, but cannot be created or destroyed. The first law is often formulated by stating that the change in the internal energy of a closed system is equal to the amount of heat supplied to the system, minus the amount of work done by the system on its surroundings.

Answer 3

from ma book

Answer 4

Okay, so it will be U = Q - W? /.\

*Crossing Fingers*

Answer 5

yeah did i really help you?

Answer 6

In any incremental process, the change in the internal energy is considered due to a combination of heat added to the system and work done by the system. Taking as an infinitesimal (differential) change in internal energy, one writes

Answer 7

Yessh! You did, alot because i didnt even understand the question but the way you reword it with more information did help :)

Answer 8

Okay i got another question i didnt get @missMob /.\

Answer 9

okay post it