Question

What symbol is used to represent internal energy in the first law of thermodynamics?

A. Q
B. W
C. U
D. V

Answer 1

Answer:

\Delta U = Q - W

aka—^

(ΔU = Q − W)

The symbol for Internal Energy Change isΔU. It is the sum of all the microscopic energies such as: translational kinetic energy. vibrational and rotational kinetic energy.