Which of the following statements are associated with second law of thermodynamics?
1. When a system executes a cyclic process net work transfer is equal to net heat transfer
2. It is impossible to construct an engine that operating in a cycle will produce no other effect than the extraction of heat from a reservoir and performance of an equivalent amount of work
3. It is impossible by any procedure no matter how idealized to reduce any system to the absolute zero of temperature in a finite number of operations
4. It is impossible to construct a device that operating in a cycle will produce no effect other than transfer of heat from a cooler to hotter body.
Select the correct answer using the codes given below
(a) 1, 2 and 4 (b) 2 and 4 (c) 2, 3 and 4 (d) 2 and 3