For a certain thermodynamic process involving an ideal gas, the following parameters are observed: U 0, q = 0 , and w 0 . Which of the following physical processes corresponds to these conditions?

Step-by-step solution

The condition q = 0 implies that the process is adiabatic (no heat exchange with the surroundings). The condition w 0 (using IUPAC chemistry sign convention) indicates that work is done by the system, which corresponds to an expansion process against a non-zero external pressure. Applying the First Law of Thermodynamics: U = q + w Since q = 0 and w 0 , we get U 0 , which is consistent with the given conditions. Therefore, the process is an adiabatic expansion of an ideal gas against a non-zero external pressure. An