Thermodynamic Process Analysis · PhysicsBowl 2015 #25
Physics · thermodynamics
Problem
A gas undergoes the unusual process in the pressure vs. volume graph shown. Which one of the following choices properly represents the signs of the internal energy change of the gas, , the total energy transferred as heat to the gas, , and the total work done on the gas by the surroundings, , for this process? [Figure: P-V diagram showing process from point M to point N]| (A) | Positive | Negative | Positive |
| (B) | Negative | Positive | Negative |
| (C) | Negative | Negative | Negative |
| (D) | Positive | Positive | Negative |
| (E) | Negative | Negative | Positive |