3) Chlorine gas is to be heated from 100°C and 1 atm to 200°C a) Calculate the heat input (kW) required to heat a stream of gas flowing at 5.0 kmol/s at constant pressure. b) Calculate the heat input (kJ) required to raise the temperature of 5.0 kmol of chlorine in a closed rigid vessel from 100°C and 1 atm to 200°C