engineering recuitment Vizag Steel MT Mechanical 2020 Test Series Thermodynamics Thermodynamics System and Processes Properties of Systems
The thermodynamic state of a closed system containing a pure fluid changes from (T1, p1) to (T2, p2), where T and p denote the temperature and pressure, respectively. Let Q denote the heat absorbed (> 0 if absorbed by the system) and W the work done (> 0 if done by the system). Neglect changes in kinetic and potential energies. Which one of the following is CORRECT?
1
Q is path-independent and W is path-dependent
2
Q is path-dependent and W is path-independent
3
(Q - W) is path-independent
4
(Q + W) is path-independent