1.Ethane gas (C2H6) at 25C is burned with 150% theoretical air at 500 K and 1 atm. Find the heat transfer (in KJ/Kmol)from a steady-flow combustor if the products are at 1000 K and (a) complete combustion occurs; (b) 95% of the carbon is converted to CO2 and 5% to CO.
2.In swamped common-emitter BJT amplifier, as shown below, if Vcc = 12v, R1 = 8.2 k ohm, R2 = 10 k ohm, Rc = 500 ohm, Re = 1 k ohm, and Beta = 100, what is the transistor's emitter current?