engineering recuitment BEL Probationary Engineers Mock Test 2025 Thermodynamics First Law of Thermodynamics
A system undergoes a cyclic process and returns to its initial state. Which of the following statements is true regarding this process?
1
The system does not exchange heat with the surroundings.
2
The change in internal energy of the system is zero.
3
The system has reached absolute zero temperature.
4
The work done by the system is zero.