I hope may of us here have idea about Kalina Cycle. In this process, a mixture of water and ammonia is used and ammonia is the main working fluid to rotate the turbine (or other machinery) to produce power. In this process, water is first used to absorb ammonia at the Condenser and the this water-ammonia mixture is pressurised and this pressurised mixture is heated and inside a chamber, the pressurised mixture is released to a lower pressure level and the ammonia is separated from water. This hot ammonia then rotates a turbine (or other machinery) and produce power/electricity. After that, the comparatively colder ammonia goes to the Condenser and then remixed with the water again. The water is being cooled as much as possible before being injected into the Condenser again. Now, question is, what's the role of water here and why ammonia isn't directly being compressed. The answer is simple. If, instead of being mixed with water, ammonia will be compressed directly; the power consumption will just simply skyrocket and it would be simply impossible for the cycle to produce net power. Ammonia, like other gases, will behave in the same manner when compressed alone. But, when mixed with water, it behaves like a liquid and takes far far less energy to compress. That's my opinion. What do other think about this matter?