Question

State the First law of thermodynamics. What are the sign conventions of the work
done on the system and by the system?​

Answer 1

Answer:We use the following sign conventions: if Q is positive, then there is a net heat transfer into the system; if W is positive, then there is net work done by the system. So positive Q adds energy to the system and positive W takes energy from the system.

Explanation:

Answer 2

Explanation:

The first law of thermodynamics, also known as Law of Conservation of Energy, states that energy can neither be created nor destroyed; energy can only be transferred or changed from one form to another.