Infrared waves operates in frequencies between 300 GHz to 400 THz with wavelength ranging between 1 mm to 770 mm. The initial 6G networks are proposing a THz frequencies for smooth operation, fast speed and ultra-low latency. Explain why Infrared frequencies are not the option for 6G networks with detailed technical reasons to support your answer

A2-m rigid tank initially contains saturated water vapor at 100 kpa. the tank is connected to a supply line through a valve. steam is flowing in the supply line at 600 kpa and 300 c. the valve is opened, and steam is allowed to enter the tank until the pressure in the tank reaches the line pressure, at which point the valve is closed. a thermometer placed in the tank indicates that the temperature at the final state is 200°c. determine (a) the mass of steam that has entered the tank (b) the amount of heat transfer.