Question 1:A heat pump with R-134a operating liquid. They want to heat water from 15C to 52C. This is done by extracting heat from a river where they cool down to a maximum of 3C so that nature is not too burdened, and the river has a flow rate of 28 m3/s. It is an ideal vapor cooling cycle and the pressure at the beginning of compression is 320 kPa. It is also known that the R-134a will start condensing at a temperature of 57.88C.a) Do you use the internal energy or enthalpy of R134a? Calculate this for each condition.b) What is the maximum heat capacity you can extract from the river?c) What is the mass flow rate of R134a that you need for this?d) Determine the power of the compressor.e) Determine the COP of the heat pump f) At what flow rate is the water heated? (no idea if this was mass or volume)g) In what states is entropy generated? And what causes does that entropy generation have?h) If you lower the entropy generation, the system is more efficient. How would you lower it in this cycle if everything could be adjusted? And what consequences does this have? (not sure about this question)