A diatomic ideal gas (5 750 kg/h), at 5 bar and 15C, is to be compressed in two stages. In the low-pressure compressor (K-01), the gas is compressed to 20 bars. The compressor outlet is cooled using an intercooler (E-01) to 40C. In the high-pressure compressor (K-02), the gas is compressed to 60 bars. Estimate the total power required for the compression. The compressor efficiency can be taken to be 80%. The molecular mass of the gas is 28.0. The ratio of the specific heats = 1.4.