What does the first law of thermodynamics state about energy in a closed system?
Question 2
Which quantity describes the total microscopic energy stored within a system due to its molecular motion and interactions?
Question 3
In the usual sign convention for a closed system, what happens to the internal energy if the system receives $500\,\text{J}$ of heat and does $200\,\text{J}$ of work?
Question 4
Which statement best describes heat in thermodynamics?
Question 5
Which statement best describes work in thermodynamics?
