First Law of Thermodynamics: in an Isochoric Process, the Internal

Multiple Choice

First law of thermodynamics: In an isochoric process, the internal (thermal) energy of an ideal gas decreases by 50 J. How much work does the gas do during this process?

A) 0.00 J
B) 25 J
C) 50 J
D) -25 J
E) -50 J